49y^2-5=33

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Solution for 49y^2-5=33 equation:



49y^2-5=33
We move all terms to the left:
49y^2-5-(33)=0
We add all the numbers together, and all the variables
49y^2-38=0
a = 49; b = 0; c = -38;
Δ = b2-4ac
Δ = 02-4·49·(-38)
Δ = 7448
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:
$\sqrt{\Delta}=\sqrt{7448}=\sqrt{196*38}=\sqrt{196}*\sqrt{38}=14\sqrt{38}$
$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-14\sqrt{38}}{2*49}=\frac{0-14\sqrt{38}}{98} =-\frac{14\sqrt{38}}{98} =-\frac{\sqrt{38}}{7} $
$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+14\sqrt{38}}{2*49}=\frac{0+14\sqrt{38}}{98} =\frac{14\sqrt{38}}{98} =\frac{\sqrt{38}}{7} $

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