alexisle5649
alexisle5649
01-10-2020
Mathematics
contestada
x^2-7x=18
solve for x
please show work
Respuesta :
BigHit01BTSazh
BigHit01BTSazh
01-10-2020
So the answer is, x1=-2, x2=9
x^2-7x=18
x^2-7x-18=0
x^2+2x-9x-18=0
x*(x+2)-9(x+2)=0
(x+2)*(x-9)=o
x+2=0
x-9=0
X=-2
X=9
I hope u understand!
Answer Link
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