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(x*x)+0.46x-0.12=0
We add all the numbers together, and all the variables
(+x*x)+0.46x-0.12=0
We add all the numbers together, and all the variables
0.46x+(+x*x)-0.12=0
We get rid of parentheses
0.46x+x*x-0.12=0
Wy multiply elements
x^2+0.46x-0.12=0
a = 1; b = 0.46; c = -0.12;
Δ = b2-4ac
Δ = 0.462-4·1·(-0.12)
Δ = 0.6916
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{-(0.46)-\sqrt{0.6916}}{2*1}=\frac{-0.46-\sqrt{0.6916}}{2} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0.46)+\sqrt{0.6916}}{2*1}=\frac{-0.46+\sqrt{0.6916}}{2} $
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