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Simplifying Expressions Objective simplify and evaluate algebraic expressions.

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Presentation on theme: "Simplifying Expressions Objective simplify and evaluate algebraic expressions."— Presentation transcript:

1

2 Simplifying Expressions

3 Objective simplify and evaluate algebraic expressions

4 Evaluating Expressions Remember to use correct order of operations. Evaluate the expression 2x – 3xy +4y when x = 3 and y = -5. To find the numerical value of the expression, simply replace the variables in the expression with the appropriate number.

5 Example Evaluate 2x–3xy +4y when x = 3 and y = -5. Substitute in the numbers. 2(3) – 3(3)(-5) + 4(-5) Use correct order of operations. 6 + 45 – 20 51 – 20 31

6 Evaluating Example

7 Substitute in the numbers.

8 Evaluating Example Substitute in the numbers.

9 Evaluating Example Remember correct order of operations. Substitute in the numbers.

10 Common Mistakes IncorrectCorrect

11 More Examples


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