(4x+7)*x=360

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Solution for (4x+7)*x=360 equation:



(4x+7)*x=360
We move all terms to the left:
(4x+7)*x-(360)=0
We multiply parentheses
4x^2+7x-360=0
a = 4; b = 7; c = -360;
Δ = b2-4ac
Δ = 72-4·4·(-360)
Δ = 5809
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{5809}}{2*4}=\frac{-7-\sqrt{5809}}{8} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(7)+\sqrt{5809}}{2*4}=\frac{-7+\sqrt{5809}}{8} $

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