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17.4x^2-100=0
a = 17.4; b = 0; c = -100;
Δ = b2-4ac
Δ = 02-4·17.4·(-100)
Δ = 6960
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{-(0)-\sqrt{6960}}{2*17.4}=\frac{0-\sqrt{6960}}{34.8} =-\frac{\sqrt{}}{34.8} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+\sqrt{6960}}{2*17.4}=\frac{0+\sqrt{6960}}{34.8} =\frac{\sqrt{}}{34.8} $
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