7x*2x+27=180

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Solution for 7x*2x+27=180 equation:



7x*2x+27=180
We move all terms to the left:
7x*2x+27-(180)=0
We add all the numbers together, and all the variables
7x*2x-153=0
Wy multiply elements
14x^2-153=0
a = 14; b = 0; c = -153;
Δ = b2-4ac
Δ = 02-4·14·(-153)
Δ = 8568
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:
$\sqrt{\Delta}=\sqrt{8568}=\sqrt{36*238}=\sqrt{36}*\sqrt{238}=6\sqrt{238}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-6\sqrt{238}}{2*14}=\frac{0-6\sqrt{238}}{28} =-\frac{6\sqrt{238}}{28} =-\frac{3\sqrt{238}}{14} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+6\sqrt{238}}{2*14}=\frac{0+6\sqrt{238}}{28} =\frac{6\sqrt{238}}{28} =\frac{3\sqrt{238}}{14} $

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