X(x+8)-8=x2+3x+1

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Solution for X(x+8)-8=x2+3x+1 equation: 



X(X+8)-8=X2+3X+1

We move all terms to the left:

X(X+8)-8-(X2+3X+1)=0

We add all the numbers together, and all the variables

-(+X^2+3X+1)+X(X+8)-8=0

We multiply parentheses

-(+X^2+3X+1)+X^2+8X-8=0

We get rid of parentheses

-X^2+X^2-3X+8X-1-8=0

We add all the numbers together, and all the variables

5X-9=0

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

5X=9

X=9/5

X=1+4/5

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