2x-1/2=4x平方-1/4解方程怎样解?
问题描述:
2x-1/2=4x平方-1/4解方程怎样解?
答
2x-1/2=4x^2-1/4 4x^2-2x+1/4=0(左边是完全平方式) (2x-1/2)^2=0 2x-1/2=0 2x=1/2 x=1/4
2x-1/2=4x平方-1/4解方程怎样解?
2x-1/2=4x^2-1/4 4x^2-2x+1/4=0(左边是完全平方式) (2x-1/2)^2=0 2x-1/2=0 2x=1/2 x=1/4