Question

1. simplify and express as a monomial or a binomial : (3x + 2)square - (3x-2) square​

Answer 1

(3x+2)^2 - (3x-2)^2

a^2+b^2+2ab -. a^2+b^2-2ab

3x^2+2^2+2×3x×2 - (3x^2+2^2-2×3x×2)

9x^2+4+12x - (9x^2+4-12x)

9x^2+4+12x-9x^2-4+12x

24x

Answer 2

Answer:

(3x + 2)square - (3x-2) square

=(3x square - 2 square) square

=(9x square - 4)square

using identity a square +2ab +b square

=81x square - 16