关于A LEVEL数学题的解答
问题描述：
关于A LEVEL数学题的解答
y=x的2次方,y=x(x的方-1）;
1.sketch the two curves on the same axes
2.state the number of points of intersection
3.write down a suitable equation which would give the x-coordinates of these points.(you are not required to solve this equation.)
解答第三问,不需要翻译.我有些搞不明白怎么回事.
答
x²=x*(x²-1)