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因式分解 t的三次方+3 t方+3t+2
人气:476 ℃ 时间:2020-04-05 22:49:57
解答
t的三次方+3 t方+3t+2
=(t的三次方+2 t方)+(t方+3t+2)
=t方(t+2)+(t+2)(t+1)
=(t+2)(t方+t+1)
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