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Rational Expressions – Restrictions When working with rational expressions, we must remember that it is not possible to divide by zero. So we will identify.

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Presentation on theme: "Rational Expressions – Restrictions When working with rational expressions, we must remember that it is not possible to divide by zero. So we will identify."— Presentation transcript:

1 Rational Expressions – Restrictions When working with rational expressions, we must remember that it is not possible to divide by zero. So we will identify / define values that are NON-PERMISSIBLE. Steps : 1. Factor completely ( if needed ) 2. Set your denominator = 0 and solve for your variable

2 Rational Expressions – Restrictions When working with rational expressions, we must remember that it is not possible to divide by zero. So we will identify / define values that are NON-PERMISSIBLE. Example : Find the non-permissible replacement for x : Steps : 1. Factor completely ( if needed ) 2. Set your denominator = 0 and solve for your variable

3 Rational Expressions – Restrictions When working with rational expressions, we must remember that it is not possible to divide by zero. So we will identify / define values that are NON-PERMISSIBLE. Example : Find the non-permissible replacement for x : Steps : 1. Factor completely ( if needed ) 2. Set your denominator = 0 and solve for your variable No factoring needed so set denominator = 0 and solve.

4 Rational Expressions – Restrictions When working with rational expressions, we must remember that it is not possible to divide by zero. So we will identify / define values that are NON-PERMISSIBLE. Example : Find the non-permissible replacement for x : Steps : 1. Factor completely ( if needed ) 2. Set your denominator = 0 and solve for your variable No factoring needed so set denominator = 0 and solve. Answer

5 Rational Expressions – Restrictions When working with rational expressions, we must remember that it is not possible to divide by zero. So we will identify / define values that are NON-PERMISSIBLE. Example : Find the non-permissible replacement for m : Steps : 1. Factor completely ( if needed ) 2. Set your denominator = 0 and solve for your variable

6 Rational Expressions – Restrictions When working with rational expressions, we must remember that it is not possible to divide by zero. So we will identify / define values that are NON-PERMISSIBLE. Example : Find the non-permissible replacement for m : Steps : 1. Factor completely ( if needed ) 2. Set your denominator = 0 and solve for your variable No factoring needed so set denominator = 0 and solve.

7 Rational Expressions – Restrictions When working with rational expressions, we must remember that it is not possible to divide by zero. So we will identify / define values that are NON-PERMISSIBLE. Example : Find the non-permissible replacement for m : Steps : 1. Factor completely ( if needed ) 2. Set your denominator = 0 and solve for your variable No factoring needed so set denominator = 0 and solve. Answer

8 Rational Expressions – Restrictions When working with rational expressions, we must remember that it is not possible to divide by zero. So we will identify / define values that are NON-PERMISSIBLE. Example : Find the non-permissible replacement for a : Steps : 1. Factor completely ( if needed ) 2. Set your denominator = 0 and solve for your variable

9 Rational Expressions – Restrictions When working with rational expressions, we must remember that it is not possible to divide by zero. So we will identify / define values that are NON-PERMISSIBLE. Example : Find the non-permissible replacement for a : Steps : 1. Factor completely ( if needed ) 2. Set your denominator = 0 and solve for your variable No factoring needed so set denominator = 0 and solve. There is a short cut for denominators like The answer is

10 Rational Expressions – Restrictions When working with rational expressions, we must remember that it is not possible to divide by zero. So we will identify / define values that are NON-PERMISSIBLE. Example : Find the non-permissible replacement for a : Steps : 1. Factor completely ( if needed ) 2. Set your denominator = 0 and solve for your variable In this case c = 2 and d = 9 There is a short cut for denominators like The answer is

11 Rational Expressions – Restrictions When working with rational expressions, we must remember that it is not possible to divide by zero. So we will identify / define values that are NON-PERMISSIBLE. Example : Find the non-permissible replacement for a : Steps : 1. Factor completely ( if needed ) 2. Set your denominator = 0 and solve for your variable In this case c = 2 and d = 9 There is a short cut for denominators like The answer is Answer

12 Rational Expressions – Restrictions When working with rational expressions, we must remember that it is not possible to divide by zero. So we will identify / define values that are NON-PERMISSIBLE. Example : Find the non-permissible replacement for x : Steps : 1. Factor completely ( if needed ) 2. Set your denominator = 0 and solve for your variable

13 Rational Expressions – Restrictions When working with rational expressions, we must remember that it is not possible to divide by zero. So we will identify / define values that are NON-PERMISSIBLE. Example : Find the non-permissible replacement for x : Steps : 1. Factor completely ( if needed ) 2. Set your denominator = 0 and solve for your variable Factored denominator

14 Rational Expressions – Restrictions When working with rational expressions, we must remember that it is not possible to divide by zero. So we will identify / define values that are NON-PERMISSIBLE. Example : Find the non-permissible replacement for x : Steps : 1. Factor completely ( if needed ) 2. Set your denominator = 0 and solve for your variable Set each expression = 0 and solve…

15 Rational Expressions – Restrictions When working with rational expressions, we must remember that it is not possible to divide by zero. So we will identify / define values that are NON-PERMISSIBLE. Example : Find the non-permissible replacement for y : Steps : 1. Factor completely ( if needed ) 2. Set your denominator = 0 and solve for your variable

16 Rational Expressions – Restrictions When working with rational expressions, we must remember that it is not possible to divide by zero. So we will identify / define values that are NON-PERMISSIBLE. Example : Find the non-permissible replacement for y : Steps : 1. Factor completely ( if needed ) 2. Set your denominator = 0 and solve for your variable Factored denominator

17 Rational Expressions – Restrictions When working with rational expressions, we must remember that it is not possible to divide by zero. So we will identify / define values that are NON-PERMISSIBLE. Example : Find the non-permissible replacement for y : Steps : 1. Factor completely ( if needed ) 2. Set your denominator = 0 and solve for your variable


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