x(x-6)=2(x-8)x^2-6x-2x+16=0x^2-8x+16=0(x-4)(x-4)=0x=4
x(x-6)=2(x-8)x²-6x=2x-16x²-8x+16=0（x-4）²=0x-4=0x1=x2=4
x的平方-6x=2x-16
