Question

(3x-2y) (3x-2y) using identities find the following product

Answer 1

(a-b) (a-b)

= (a-b)^2

= (3x - 2y)^2

= 9x^2 + 4y^2 - 12xy

Answer 2

(3x-2y) (3x-2y)
=9x²-6xy-6xy+4y²
=9x²-12xy+4y²
=(3x)²-2.3x.4y+(2y)²
=(3x-2y)²