7x+x^2=29

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Solution for 7x+x^2=29 equation:



7x+x^2=29
We move all terms to the left:
7x+x^2-(29)=0
a = 1; b = 7; c = -29;
Δ = b2-4ac
Δ = 72-4·1·(-29)
Δ = 165
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(7)-\sqrt{165}}{2*1}=\frac{-7-\sqrt{165}}{2} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(7)+\sqrt{165}}{2*1}=\frac{-7+\sqrt{165}}{2} $

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