Simplify:-
a) (x+3)³ + (x-3)³
b) (x/2 + y/3)³ - (x/2 - y/3)³
c) (2x + 5)³ + (2x - 5)³
d) (3x - 2y)³ - (3x + 2y)³
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Answer:
(a)2x3+54
(b)3x2y+2xy2÷6
(c)2(2x3)+2(125)
(d)0
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