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Published byAgnes Allison Modified over 6 years ago

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E Maths Lecture Chapter 1: Solutions of Quadratic Equations

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In this chapter you will learn... Solving Quadratic Equations by Factorisation Solution by Completing the Square Solution by Formula Problems involving Quadratic Equations

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By Factorisation

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Completing the Square Step 1 : Convert the coefficient of x 2 to 1 Step 2 : Bring c to the other side of the equation Step 3 : Add to both sides of the equation Step 4 : Factorise and simplify the equation Recall : The general form of a quadratic equation is

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Practice

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Imagine x 2 +22x... x x x x 11 ??

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Do you understand ??

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What happens if the coefficient of x 2 is not one??

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