英语翻译

问题描述:

英语翻译
solve the equation graphically by finding x-intercepts.
confirm by using factoring to solve the equation.
x²-x-20=0
4x²-8x+3=0
x(3x-7)=6

通过找X轴的坐标值(Y=0)的方法用图表法求解方程,遵从未知数解方程.
(x-5)(x+4)=0,则x=5或x=-4
(2x-3)(2x-1)=0,则x=3/2或x=1/2
(3x+2)(x-3)=0,则x=-2/3或x=3图表法的话,是要画图吗,答案我用计算器就能算出来了