5(x-1)^2-2(x+3)^2=3(x+3)^2-7(6x-1)
问题描述:
5(x-1)^2-2(x+3)^2=3(x+3)^2-7(6x-1)
答
5(x-1)^2-2(x+3)^2=3(x+3)^2-7(6x-1)
5x^2-10x+5-2x^2-12x-18=3x^2+18x+27-42x+7
-22x-13=34-24x
2x=47
所以x=47/2