-11y-2=5y^2

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Solution for -11y-2=5y^2 equation:



-11y-2=5y^2
We move all terms to the left:
-11y-2-(5y^2)=0
determiningTheFunctionDomain -5y^2-11y-2=0
a = -5; b = -11; c = -2;
Δ = b2-4ac
Δ = -112-4·(-5)·(-2)
Δ = 81
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{81}=9$
$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-11)-9}{2*-5}=\frac{2}{-10} =-1/5 $
$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-11)+9}{2*-5}=\frac{20}{-10} =-2 $

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