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4x^2-58x+210x=0
We add all the numbers together, and all the variables
4x^2+152x=0
a = 4; b = 152; c = 0;
Δ = b2-4ac
Δ = 1522-4·4·0
Δ = 23104
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{23104}=152$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(152)-152}{2*4}=\frac{-304}{8} =-38 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(152)+152}{2*4}=\frac{0}{8} =0 $
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