Prove the identity (a+b) (a-b) = a^2-b^2 For each step list the property or definition that justifies the step.

Question

Mathematics

Fernanda Banks

31 May, 05:38

Prove the identity (a+b) (a-b) = a^2-b^2 For each step list the property or definition that justifies the step.

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Answers (1)

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Emmanuel Bowen · Answer 1

Answer: (a+b) (a-b) = a^2-b^2 are equal

Step-by-step explanation: by expanding

The equation

(a+b) (a-b)

Multiple both

a^2-ab+ab-b^2

Which by collecting like term - ab+ab=0

Making

a^2-b^2