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4x2-13x+8=-2x+2

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Solution for 4x2-13x+8=-2x+2 equation:



4x^2-13x+8=-2x+2
We move all terms to the left:
4x^2-13x+8-(-2x+2)=0
We get rid of parentheses
4x^2-13x+2x-2+8=0
We add all the numbers together, and all the variables
4x^2-11x+6=0
a = 4; b = -11; c = +6;
Δ = b2-4ac
Δ = -112-4·4·6
Δ = 25
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{25}=5
x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-11)-5}{2*4}=\frac{6}{8} =3/4
x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-11)+5}{2*4}=\frac{16}{8} =2

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