Question

Plzzzz help me


Q 1: Using suitable identities , evaluate the following:

i. (11x+9)(11x+15)

Answer 1

Answer:

11x(11x+15)+9(11x+15)

121x sq + 165 x +99x + 135

121x sq + 264x +135 answer.

Answer 2

Answer:

it in form (x+a)(X+B)=x²+(a+b)x+ab

Step-by-step explanation:

so 11x+9    11X+15=  11²+(9+15)11+9*15

=121+24*11+135

=121+264+135

=520