x2-10x-150=0

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Solution for x2-10x-150=0 equation:



x2-10x-150=0
We add all the numbers together, and all the variables
x^2-10x-150=0
a = 1; b = -10; c = -150;
Δ = b2-4ac
Δ = -102-4·1·(-150)
Δ = 700
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:
$\sqrt{\Delta}=\sqrt{700}=\sqrt{100*7}=\sqrt{100}*\sqrt{7}=10\sqrt{7}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-10)-10\sqrt{7}}{2*1}=\frac{10-10\sqrt{7}}{2} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-10)+10\sqrt{7}}{2*1}=\frac{10+10\sqrt{7}}{2} $

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