求出使(3x+2)(3x-4)>9(x-2)(x+3)成立的非负整数解

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(3x+2)(3x-4)-9(x-2)(x+3)=9x方-6x-8-(9x方+9x-54)
=-15x+54
所以拦镇-15x+54>敬明0
x<48/15
又因为求非负整数解
所亮衡告以x=1或x=2或x=3

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