(a²-b²)+(3a-3b)因式分解
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(a²-b²)+(3a-3b)因式分解
(a²-b²)+(3a-3b)
=(a+b)(a-b)+3(a-b)
=(a+b+3)(a-b)
(a²-b²)+(3a-3b
=(a+b)(a-b)+3(a-b)
=(a-b)(a+b+3)
(a²-b²)+(3a-3b)因式分解
(a²-b²)+(3a-3b)
=(a+b)(a-b)+3(a-b)
=(a+b+3)(a-b)
(a²-b²)+(3a-3b
=(a+b)(a-b)+3(a-b)
=(a-b)(a+b+3)