8(2x+3x2)=-4x+148

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Solution for 8(2x+3x2)=-4x+148 equation:



8(2x+3x^2)=-4x+148
We move all terms to the left:
8(2x+3x^2)-(-4x+148)=0
We multiply parentheses
24x^2+16x-(-4x+148)=0
We get rid of parentheses
24x^2+16x+4x-148=0
We add all the numbers together, and all the variables
24x^2+20x-148=0
a = 24; b = 20; c = -148;
Δ = b2-4ac
Δ = 202-4·24·(-148)
Δ = 14608
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:
$\sqrt{\Delta}=\sqrt{14608}=\sqrt{16*913}=\sqrt{16}*\sqrt{913}=4\sqrt{913}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(20)-4\sqrt{913}}{2*24}=\frac{-20-4\sqrt{913}}{48} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(20)+4\sqrt{913}}{2*24}=\frac{-20+4\sqrt{913}}{48} $

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