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(-3.8x)(-5.9x)=223.1
We move all terms to the left:
(-3.8x)(-5.9x)-(223.1)=0
We add all the numbers together, and all the variables
(-3.8x)(-5.9x)-223.1=0
We multiply parentheses ..
(+15x^2)-223.1=0
We get rid of parentheses
15x^2-223.1=0
a = 15; b = 0; c = -223.1;
Δ = b2-4ac
Δ = 02-4·15·(-223.1)
Δ = 13386
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{13386}}{2*15}=\frac{0-\sqrt{13386}}{30} =-\frac{\sqrt{}}{30} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+\sqrt{13386}}{2*15}=\frac{0+\sqrt{13386}}{30} =\frac{\sqrt{}}{30} $
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