factorize 8(a+b)³-2a-2b
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Answer:
8(a+b)^3-2a-2b
=8(a+b)^3-2(a+b)
=2(a+b){4(a+b)^2-1}
=2(a+b){4(a^2+2ab+b^2)-1}
=2(a+b)(4a^2+8ab+4b^2-1)
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