X(X+1)(X-2)(X+3)>0解集为多少,
问题描述:
X(X+1)(X-2)(X+3)>0解集为多少,
答
当x> 0时,原方程变为
x2-3x +2 = 0
(X-1)(X-2)= 0
x = 1或X = 2
当x