6-1/2X^2=6X(要过程,2X^2-4根号2X-9=0 根号3X^2-3X-根号3=0

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6-1/2X^2=6X(要过程,2X^2-4根号2X-9=0根号3X^2-3X-根号3=06-1/2X^2=6X(要过程,2X^2-4根号2X-9=0根号3X^2-3X-根号3=06-1/2X^2=6

6-1/2X^2=6X(要过程,2X^2-4根号2X-9=0 根号3X^2-3X-根号3=0
6-1/2X^2=6X(要过程,2X^2-4根号2X-9=0 根号3X^2-3X-根号3=0

6-1/2X^2=6X(要过程,2X^2-4根号2X-9=0 根号3X^2-3X-根号3=0
6-1/2X^2=6X
12-x^2=12x
x^2+12x-12=0
(x+6)^2=48
x+6=±4根号3
x=±4根号3-6
2X^2-4根号2X-9=0
自己慢慢算吧,真费劲!