6x+3=7x(x+5)腹股沟

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6x+3=7x(x+5)腹股沟

6x+3=7x(x+5)腹股沟
6x+3=7x(x+5)
腹股沟

6x+3=7x(x+5)腹股沟
x=-32
6x+3=7x(x+5)
6x=7x+35-3
-x=32
x=-32

7x^2+39x-3=0
x=(-39±√1605)/49
(能化简吗?)

=-32

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