x∧3-x∧2+x-1=(x∧2+1)(x-1)怎么化简出来的有公式么
问题描述:
x∧3-x∧2+x-1=(x∧2+1)(x-1)怎么化简出来的有公式么
答
x∧3-x∧2+x-1
=x^2(x-1)+(x-1)
=(x-1)(x∧2+1)
=(x∧2+1)(x-1)