X²-4X+1/3X²-7X+2≥1 (x-1)-(-2x-3)(3x-1)>0 x²-4x+1/3X²-7X+ 2≥1
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![X²-4X+1/3X²-7X+2≥1 (x-1)-(-2x-3)(3x-1)>0 x²-4x+1/3X²-7X+ 2≥1](/uploads/image/z/1986551-71-1.jpg?t=X%26%23178%3B-4X%2B1%2F3X%26%23178%3B-7X%2B2%E2%89%A51+%EF%BC%88x-1%29-%28-2x-3%29%283x-1%29%EF%BC%9E0+x%26%23178%3B-4x%2B1%2F3X%26%23178%3B-7X%2B+2%E2%89%A51)
X²-4X+1/3X²-7X+2≥1 (x-1)-(-2x-3)(3x-1)>0 x²-4x+1/3X²-7X+ 2≥1
X²-4X+1/3X²-7X+2≥1 (x-1)-(-2x-3)(3x-1)>0 x²-4x+1/3X²-7X+ 2≥1
X²-4X+1/3X²-7X+2≥1 (x-1)-(-2x-3)(3x-1)>0 x²-4x+1/3X²-7X+ 2≥1
第一个改写为,4x^2-33x+3>=0,此时求4x^2-33x+3=0 的两个解,x=8.16或x=0.09
所以,若4x^2-33x+3>=0,则x>=8.16或x0,同理,求3x^2+4x-2=0 的两个解,x=0.39或x=-1.72
所以,若3x^2+4x-2>0,则x>0.39或x