Please solve (urgent)

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

Asked by mchopra99 | 7th Sep, 2020, 05:19: PM

Expert Answer:

As we know that a3 - b3 = (a - b)(a2 + ab + b2)
(2x - 3y)3 - (2x + 3y)3 = (2x - 3y - 2x - 3y)(4x2 + 6xy + 9y2)
= -6y(4x2 + 6xy + 9y2)
= -24x2y - 36xy2 - 54y3

Answered by Renu Varma | 8th Sep, 2020, 11:18: AM