(5+2w)(w)=250

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Solution for (5+2w)(w)=250 equation:



(5+2w)(w)=250
We move all terms to the left:
(5+2w)(w)-(250)=0
We add all the numbers together, and all the variables
(2w+5)w-250=0
We multiply parentheses
2w^2+5w-250=0
a = 2; b = 5; c = -250;
Δ = b2-4ac
Δ = 52-4·2·(-250)
Δ = 2025
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$w_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$w_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{2025}=45$
$w_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(5)-45}{2*2}=\frac{-50}{4} =-12+1/2 $
$w_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(5)+45}{2*2}=\frac{40}{4} =10 $

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