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-2n^2+38n=0
a = -2; b = 38; c = 0;
Δ = b2-4ac
Δ = 382-4·(-2)·0
Δ = 1444
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$n_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$n_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{1444}=38$$n_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(38)-38}{2*-2}=\frac{-76}{-4} =+19 $$n_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(38)+38}{2*-2}=\frac{0}{-4} =0 $
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