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যদি x + y = p, x - y = q হয়, তবে (x+y)3-6(x+y)2 (x-y) +12(x+y)(x-y)2-8(x-y)3= কত?
(p+2q)3
(p-2q)3
p-2q3
p3-2q3
ANS : 2
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