49y2-70y=0

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Solution for 49y2-70y=0 equation:



49y^2-70y=0
a = 49; b = -70; c = 0;
Δ = b2-4ac
Δ = -702-4·49·0
Δ = 4900
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{4900}=70$
$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-70)-70}{2*49}=\frac{0}{98} =0 $
$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-70)+70}{2*49}=\frac{140}{98} =1+3/7 $

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