(x^2)+5x+1=2x+5

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Solution for (x^2)+5x+1=2x+5 equation:



(x^2)+5x+1=2x+5
We move all terms to the left:
(x^2)+5x+1-(2x+5)=0
We get rid of parentheses
x^2+5x-2x-5+1=0
We add all the numbers together, and all the variables
x^2+3x-4=0
a = 1; b = 3; c = -4;
Δ = b2-4ac
Δ = 32-4·1·(-4)
Δ = 25
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{25}=5$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(3)-5}{2*1}=\frac{-8}{2} =-4 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(3)+5}{2*1}=\frac{2}{2} =1 $

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