19. Simplify : (2x + y)3 + (2x – y )3 .
Answers
Answered by
2
Step-by-step explanation:
(2x+y)3+3(2x-y)
=6x+3y+6x-3y
=12x-0y
=12x
Answered by
0
2x(2x-y)³+y³(2x-y)³
4x²-2xy³/+2xy³-y³
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