2X＞3X怎么解?

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2X＞3X怎么解?2X＞3X怎么解?2X＞3X怎么解?2X＞3X则2x-3x>0则-x>0则x1.x^2-5x1=0(x-5/2)^2-25/41=0(x-5/2)^2=21/4x1=5/2-21^0

2X＞3X怎么解?
2X＞3X怎么解?

2X＞3X怎么解?
2X＞3X
则2x-3x>0
则-x>0
则x

1. x^2-5x 1=0 (x-5/2)^2-25/4 1=0 (x-5/2)^2=21/4 x1=5/2-21^0.5/2 x2=5/2 21^0.5/2 2.1/2x^2-x-1=0 x^2-2x-