求不等式(2X-3)平方/3-(X-2)/4>4/3X平方-3(X+4)的非负整数的解.
问题描述:
求不等式(2X-3)平方/3-(X-2)/4>4/3X平方-3(X+4)的非负整数的解.
答
(2X-3)²/3-(X-2)/4>4/3X²-3(X+4)
(4x²-12x+9)/3-(x-2)/4-4/3x²+3(x+4)>0
4/3x²-4x+3-x/4+1/2-4/3x²+3x+12>0
(-4-1/4+3)x+(3+1/2+12)>0
-3/4x+31/2>0
3/4x