2k*2k-37=61

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Solution for 2k*2k-37=61 equation:



2k*2k-37=61
We move all terms to the left:
2k*2k-37-(61)=0
We add all the numbers together, and all the variables
2k*2k-98=0
Wy multiply elements
4k^2-98=0
a = 4; b = 0; c = -98;
Δ = b2-4ac
Δ = 02-4·4·(-98)
Δ = 1568
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$k_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$k_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:
$\sqrt{\Delta}=\sqrt{1568}=\sqrt{784*2}=\sqrt{784}*\sqrt{2}=28\sqrt{2}$
$k_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-28\sqrt{2}}{2*4}=\frac{0-28\sqrt{2}}{8} =-\frac{28\sqrt{2}}{8} =-\frac{7\sqrt{2}}{2} $
$k_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+28\sqrt{2}}{2*4}=\frac{0+28\sqrt{2}}{8} =\frac{28\sqrt{2}}{8} =\frac{7\sqrt{2}}{2} $

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