分解因式(a+2b)²-a(a+2b)分解因式(a+2b)²-a(a+2b)²
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分解因式(a+2b)²-a(a+2b)分解因式(a+2b)²-a(a+2b)²
分解因式(a+2b)²-a(a+2b)
分解因式(a+2b)²-a(a+2b)²
分解因式(a+2b)²-a(a+2b)分解因式(a+2b)²-a(a+2b)²
(a+2b)²-a(a+2b)
=(a+2b)(a+2b-a)
=2b(a+2b)