解方程9(x-2)^2=4-2x
问题描述:
解方程9(x-2)^2=4-2x
答
9(x-2)^2=4-2x
9(x^2-4x+4)=4-2x
9x^2-4x+4-4+2x=0
9X^2-2x=0
X(9x-2)=0
x1=0 9x-2=0
x2=2/9