35x2-63x+28=0

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Solution for 35x2-63x+28=0 equation:



35x^2-63x+28=0
a = 35; b = -63; c = +28;
Δ = b2-4ac
Δ = -632-4·35·28
Δ = 49
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{49}=7$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-63)-7}{2*35}=\frac{56}{70} =4/5 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-63)+7}{2*35}=\frac{70}{70} =1 $

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