a3+2a2b+3ab2+6b3 因式分解(x+1)(x+2)(x+3)(x+4)+1因式分解

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a3+2a2b+3ab2+6b3 因式分解(x+1)(x+2)(x+3)(x+4)+1因式分解

a3+2a2b+3ab2+6b3 因式分解(x+1)(x+2)(x+3)(x+4)+1因式分解
a3+2a2b+3ab2+6b3 因式分解
(x+1)(x+2)(x+3)(x+4)+1因式分解

a3+2a2b+3ab2+6b3 因式分解(x+1)(x+2)(x+3)(x+4)+1因式分解
a3+2a2b+3ab2+6b3
=a²+(a+2b)+3b²(a+2b)
=(a²+3b²)(a+2b)

a3+2a2b+3ab2+6b3
=a²(a+2b)+3b²(a+2b)
=(a+2b)(a²+3b²)