解方程:x(2X-3)+2x(x-1)=4x(x-2)+9

问题描述:

解方程:x(2X-3)+2x(x-1)=4x(x-2)+9

2x²-3x+2x²-2x=4x²-8x+9
-5x=-8x+9
3x=9
x=3