Question

evaluate:
(3x-4y) (3x+4y) (9x^2+16y^2)
​

Answer 1

Answer:

$(3x - 4y)(3x + 4y) = (9 {x}^{2} - 16y ^{2}) \\ 9 {x}^{2} + 12xy - 12xy - {16y}^{2} \\ 9 {x}^{2} - 16 {y}^{2}$