(1/x+2)+1/x=32/x平方+2x_数学解答

(1/x+2)+1/x=32/x平方+2x

人气：219 ℃　时间：2020-05-27 22:40:38

解答

1/(x+2) +1/x = 32/(x²+2x）
(2x+2)/(x²+2x)= 32/(x²+2x)
2x+2 = 32
2x = 30
x = 15