24=x^2-14xx=?
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24=x^2-14xx=?24=x^2-14xx=?24=x^2-14xx=?24=x^2-14xx^2-14x-24=0(x-7)^2-73=0(x-7)^2=73x-7=±√73x=7±√73x^
24=x^2-14xx=?
24=x^2-14x
x=?
24=x^2-14xx=?
24=x^2-14x
x^2-14x -24=0
(x-7)^2-73=0
(x-7)^2=73
x-7=±√73
x=7±√73
x^2-14x-24=0
x^2-14x+49=24+49
(x-7)^2=73
x=7+根号73
x=7-根号73
24=x^2-14xx=?
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