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2x^2+49x-50=0
a = 2; b = 49; c = -50;
Δ = b2-4ac
Δ = 492-4·2·(-50)
Δ = 2801
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(49)-\sqrt{2801}}{2*2}=\frac{-49-\sqrt{2801}}{4} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(49)+\sqrt{2801}}{2*2}=\frac{-49+\sqrt{2801}}{4} $
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