解方程:2(x-4)²+16=x²
问题描述:
解方程:2(x-4)²+16=x²
答
2x-8+16=x
2x+8=x
2x-x=-8
x=-8
答
2(x-4)²+16=x²
2(x^2-8x+16)+16=x^2
2x^2-16x+32+16-x^2=0
x^2-16x+48=0
(x-12)(x-4)=0
x-12=0 x-4=0
x1=12 x2=4
答
2(x-4)²+16=x²
2x²-16x+32+16=x²
x²-16x+48=0
(x-4)(x-12)=0
x1=4 x2=12