11b2+7b-11=0

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Solution for 11b2+7b-11=0 equation:



11b^2+7b-11=0
a = 11; b = 7; c = -11;
Δ = b2-4ac
Δ = 72-4·11·(-11)
Δ = 533
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$b_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$b_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$b_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(7)-\sqrt{533}}{2*11}=\frac{-7-\sqrt{533}}{22} $
$b_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(7)+\sqrt{533}}{2*11}=\frac{-7+\sqrt{533}}{22} $

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