5(x-1)^2-2(x+3)^2=3(x+3)^2-7(6x-1)_数学解答

5(x-1)^2-2(x+3)^2=3(x+3)^2-7(6x-1)

人气：404 ℃　时间：2020-06-11 20:53:45

解答

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