已知3X+2=0,则x^+2x+1=多少
问题描述:
已知3X+2=0,则x^+2x+1=多少
答
3X+2=0
x=-2/3
x^+2x+1
=4/9-4/3+1
=1/9
已知3X+2=0,则x^+2x+1=多少
3X+2=0
x=-2/3
x^+2x+1
=4/9-4/3+1
=1/9