5(x²-x)=3(x²+x)
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![5(x²-x)=3(x²+x)](/uploads/image/z/3817476-36-6.jpg?t=5%28x%26%23178%3B-x%29%3D3%28x%26%23178%3B%2Bx%29)
5(x²-x)=3(x²+x)
5(x²-x)=3(x²+x)
5(x²-x)=3(x²+x)
5(x²-x)=3(x²+x)
5x² -5x =3x² +3x
2x² = 8x
2x² -8x = 0
2x (x-4 ) = 0
x = 0 或者 x= 4
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