解方程:x/(x-2)-1=8/(x平方-4)
问题描述:
解方程:x/(x-2)-1=8/(x平方-4)
答
方程两边同乘(x²-4),得 x ( x + 2 ) - ( x² - 4 ) = 8 x² + 2x - x² + 4 = 8 2 x = 8 ...
解方程:x/(x-2)-1=8/(x平方-4)
方程两边同乘(x²-4),得 x ( x + 2 ) - ( x² - 4 ) = 8 x² + 2x - x² + 4 = 8 2 x = 8 ...