解不定式组:(x-1)(x+2)≥(x+3)(x-3)(x-1)(x+2)≥(x+3)(x-3)这是1还有2是(2x-1)(3x-5)>6x^2-21刚刚没打完

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/26 04:53:58
解不定式组:(x-1)(x+2)≥(x+3)(x-3)(x-1)(x+2)≥(x+3)(x-3)这是1还有2是(2x-1)(3x-5)>6x^2-21刚刚没打完解不定式组:(x-1)(x+2)≥(x+

解不定式组:(x-1)(x+2)≥(x+3)(x-3)(x-1)(x+2)≥(x+3)(x-3)这是1还有2是(2x-1)(3x-5)>6x^2-21刚刚没打完
解不定式组:(x-1)(x+2)≥(x+3)(x-3)
(x-1)(x+2)≥(x+3)(x-3)这是1
还有2是(2x-1)(3x-5)>6x^2-21
刚刚没打完

解不定式组:(x-1)(x+2)≥(x+3)(x-3)(x-1)(x+2)≥(x+3)(x-3)这是1还有2是(2x-1)(3x-5)>6x^2-21刚刚没打完
一为:x≥-7
二为:x<2

(x-1)(x+2)≥(x+3)(x-3)
X2+X-2≥ X2-9
X≥-7
(2x-1)(3x-5)>6 X2-21
6 X2-13X+5>6 X2-21
13X<21+5
X<2

1、X²+2X-X-2≥X²-9
X≥-7
2、6X²-10X-3X+5>6X²-21
-3X>-26
X<2
综上可得方程组的答案是 -7≤X∷2