4(x-3)(x-1)-(2x-30）^2-6=0_数学解答

4(x-3)(x-1)-(2x-30）^2-6=0

人气：462 ℃　时间：2020-03-29 23:46:44

解答

4(x^2-x-3x+3)-(4x^2-120x+900)-6=0
4x^2-16x+12-4x^2+120x-900-6=0
104x=900+6-12
x=447/52