(X+1)(x-2)=x2+6

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Solution for (X+1)(x-2)=x2+6 equation: 



(X+1)(X-2)=X2+6

We move all terms to the left:

(X+1)(X-2)-(X2+6)=0

We add all the numbers together, and all the variables

-(+X^2+6)+(X+1)(X-2)=0

We get rid of parentheses

-X^2+(X+1)(X-2)-6=0

We multiply parentheses ..

-X^2+(+X^2-2X+X-2)-6=0

We add all the numbers together, and all the variables

-1X^2+(+X^2-2X+X-2)-6=0

We get rid of parentheses

-1X^2+X^2-2X+X-2-6=0

We add all the numbers together, and all the variables

-1X-8=0

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

-X=8

X=8/-1

X=-8

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