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CBSE Class 8 Answered

Please solve (urgent) (2x-3y)^3-(2x+3y)^3
Asked by mchopra99 | 07 Sep, 2020, 05:19: PM
answered-by-expert 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 | 08 Sep, 2020, 11:18: AM
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