9w^2+9w-54=11w+3

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Solution for 9w^2+9w-54=11w+3 equation:



9w^2+9w-54=11w+3
We move all terms to the left:
9w^2+9w-54-(11w+3)=0
We get rid of parentheses
9w^2+9w-11w-3-54=0
We add all the numbers together, and all the variables
9w^2-2w-57=0
a = 9; b = -2; c = -57;
Δ = b2-4ac
Δ = -22-4·9·(-57)
Δ = 2056
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$w_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$w_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:
$\sqrt{\Delta}=\sqrt{2056}=\sqrt{4*514}=\sqrt{4}*\sqrt{514}=2\sqrt{514}$
$w_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-2)-2\sqrt{514}}{2*9}=\frac{2-2\sqrt{514}}{18} $
$w_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-2)+2\sqrt{514}}{2*9}=\frac{2+2\sqrt{514}}{18} $

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