6x(x-1)=36-25x

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Solution for 6x(x-1)=36-25x equation:



6x(x-1)=36-25x
We move all terms to the left:
6x(x-1)-(36-25x)=0
We add all the numbers together, and all the variables
6x(x-1)-(-25x+36)=0
We multiply parentheses
6x^2-6x-(-25x+36)=0
We get rid of parentheses
6x^2-6x+25x-36=0
We add all the numbers together, and all the variables
6x^2+19x-36=0
a = 6; b = 19; c = -36;
Δ = b2-4ac
Δ = 192-4·6·(-36)
Δ = 1225
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{1225}=35$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(19)-35}{2*6}=\frac{-54}{12} =-4+1/2 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(19)+35}{2*6}=\frac{16}{12} =1+1/3 $

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