Question

Use suitable identities to find the following products:
(vii)(x-3)(x+5)

Answer 1

Step-by-step explanation:

To Find

• Using Identity

(x+a) (x+b) =x²+ (a+b)x+ab, we have

(x-3) (x+5)=x²+(-3+5)x+(-3)(5)

=x²+2x-15

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