3x^2+5x-6=7x-1

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Solution for 3x^2+5x-6=7x-1 equation:



3x^2+5x-6=7x-1
We move all terms to the left:
3x^2+5x-6-(7x-1)=0
We get rid of parentheses
3x^2+5x-7x+1-6=0
We add all the numbers together, and all the variables
3x^2-2x-5=0
a = 3; b = -2; c = -5;
Δ = b2-4ac
Δ = -22-4·3·(-5)
Δ = 64
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{64}=8$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-2)-8}{2*3}=\frac{-6}{6} =-1 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-2)+8}{2*3}=\frac{10}{6} =1+2/3 $

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