Question

Solve using suitable identity: (p+ 7) (p – 6)

Answer 1

Step-by-step explanation:

Using identity (x+a)(x+b)=x²+(a+b)x+ab

(p+7)[p+(-6)]=p²+[7+(-6)]p+7×(-6)

=p²+(7-6)p-42

=p²+p-42

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