X(x+1)=5x-8

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Solution for X(x+1)=5x-8 equation: 



X(X+1)=5X-8

We move all terms to the left:

X(X+1)-(5X-8)=0

We multiply parentheses

X^2+X-(5X-8)=0

We get rid of parentheses

X^2+X-5X+8=0

We add all the numbers together, and all the variables

X^2-4X+8=0

a = 1; b = -4; c = +8;
Δ = b2-4ac
Δ = -42-4·1·8
Δ = -16
Delta is less than zero, so there is no solution for the equation

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