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!

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