x2-﹙x-1﹚*x=3.
问题描述:
x2-﹙x-1﹚*x=3.
答
x2-﹙x-1﹚*x=3.5
x²-x²+x=3.5
x=3.5
x2-﹙x-1﹚*x=3.
x2-﹙x-1﹚*x=3.5
x²-x²+x=3.5
x=3.5