x除以x-2-1=8除以x平方-4

数学之美团为你解答
x/(x-2) - 1 = 8/(x² - 4)
同乘以 x² - 4
x(x+4) - (x² - 4) = 8
x²+4x - x² + 4 = 8
4x = 4
x = 1
经检验,x=1是原方程的根