3a³+5a²-2
=(3a³+3a²)+(2a²-2)
=3a²(a+1)+2(a-1)(a+1)
=(a+1)(3a²+2a-2)
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3a³+5a²-2
=(3a³+3a²)+(2a²-2)
=3a²(a+1)+2(a-1)(a+1)
=(a+1)(3a²+2a-2)
明教为您解答,
请点击[满意答案];如若您有不满意之处,请指出,我一定改正!
希望还您一个正确答复!
祝您学业进步!