Question

Find the product using (x+a) (x+b) = x² + (a+b) x + ab

1. (x+15) (x-6)​

Answer 1

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Answer 2

Answer:

x^2+9x-90

Step-by-step explanation:

(x+a)(x+b)=x^2+(a+b)x+ab

=)(x+15)(x-6)=x^2+[15+(-6)]x+(15*-6)

=)x^2-6x+15x-90=x^2+9x-90

=)x^2+9x-90=x^2+9x-90

Hence,LHS=RHS (Proved)