y^2-121y=0

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Solution for y^2-121y=0 equation:



y^2-121y=0
a = 1; b = -121; c = 0;
Δ = b2-4ac
Δ = -1212-4·1·0
Δ = 14641
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{14641}=121$
$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-121)-121}{2*1}=\frac{0}{2} =0 $
$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-121)+121}{2*1}=\frac{242}{2} =121 $

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