Question

What is the square of 9x-7y

Answer 1

Step-by-step explanation:

Hope it helps you. (a-b)^ is the concept used

Answer 2

MARK ME AS THE BRAINLIEST

Answer:

81x^2 + 49x^2 + 126xy

Step-by-step explanation:

(9x-7y)^2

= (9x)^2 + (7y)^2 +2(9x)(7y) { (a+b)^2=a^2+b^2+2ab}

= 81x^2 + 49x^2 + 126xy

HOPE IT IS USEFUL