(x+2((3-x)≤0 -6x^+7x>2求不等式解

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(x+2((3-x)≤0-6x^+7x>2求不等式解(x+2((3-x)≤0-6x^+7x>2求不等式解(x+2((3-x)≤0-6x^+7x>2求不等式解(x+2)(3-x)≤0等价于(x+2)(x

(x+2((3-x)≤0 -6x^+7x>2求不等式解
(x+2((3-x)≤0 -6x^+7x>2
求不等式解

(x+2((3-x)≤0 -6x^+7x>2求不等式解
(x+2)(3-x)≤0等价于(x+2)(x-3)≥0 解得x≥3或x≤-2
-6x^+7x>2 即 6x^2-7x+2

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