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x(7/10)=250.60
We move all terms to the left:
x(7/10)-(250.60)=0
We add all the numbers together, and all the variables
x(+7/10)-(250.6)=0
We add all the numbers together, and all the variables
x(+7/10)-250.6=0
We multiply parentheses
7x^2-250.6=0
a = 7; b = 0; c = -250.6;
Δ = b2-4ac
Δ = 02-4·7·(-250.6)
Δ = 7016.8
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{7016.8}}{2*7}=\frac{0-\sqrt{7016.8}}{14} =-\frac{\sqrt{}}{14} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+\sqrt{7016.8}}{2*7}=\frac{0+\sqrt{7016.8}}{14} =\frac{\sqrt{}}{14} $
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