已知m²-m=6,则1-2m²+2m=?
问题描述:
已知m²-m=6,则1-2m²+2m=?
答
1-2m²+2m=1-2*(m²-m)=1-2*6=-11
结果为-11
已知m²-m=6,则1-2m²+2m=?
1-2m²+2m=1-2*(m²-m)=1-2*6=-11
结果为-11