(x+9)(x+)=x2+17x+72

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Solution for (x+9)(x+)=x2+17x+72 equation: 



(x+9)(x+)=x2+17x+72

We move all terms to the left:

(x+9)(x+)-(x2+17x+72)=0

We add all the numbers together, and all the variables

-(+x^2+17x+72)+(x+9)(+x)=0

We get rid of parentheses

-x^2-17x+(x+9)(+x)-72=0

We multiply parentheses ..

-x^2+(+x^2+9x)-17x-72=0

We add all the numbers together, and all the variables

-1x^2+(+x^2+9x)-17x-72=0

We get rid of parentheses

-1x^2+x^2+9x-17x-72=0

We add all the numbers together, and all the variables

-8x-72=0

We move all terms containing x to the left, all other terms to the right

-8x=72

x=72/-8

x=-9

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