x²-8x+16=4
问题描述：
x²-8x+16=4
答
x²-8x+16=4
x²-8x+12=0;
(x-2)(x-6)=0;
x=2或x=6
x²-8x+16=4
x²-8x+16=4
x²-8x+12=0;
(x-2)(x-6)=0;
x=2或x=6