因式分解 t的三次方+3 t方+3t+2
问题描述:
因式分解 t的三次方+3 t方+3t+2
答
(t+2)(t方+t+1)
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)