64(x-1)立方=-27

问题描述:

64(x-1)立方=-27
√(-4)^2+4x^2=85

(x-1)³=-27/64
x-1=-3/4
x=1/4√(-4)^2+4x^2=85x=±9/2采纳吧过程采纳我,重新问肯定会采纳,你先回答做了