你好:5(x^2-x)=3(x^2+x)解:5x^2-5x=3x^2+3x2x^2-8x=02x(x-4)=0解得x=0或x=4
5(x^2-x)=3(x^2+x)5x²-5x-3x²-3x=02x²-8x=0x﹙5x-8﹚=0x=0或x=1.6
那些也叫因式分解法。。。。5(x^2-x)=3(x^2+x)5x(x-1)=3x(x+1)5(x-1)=3(x+1),或x=05x-5=3x+32x=8x=4