-3x(x-1)+6x-3x=15

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Solution for -3x(x-1)+6x-3x=15 equation: 



-3x(x-1)+6x-3x=15

We move all terms to the left:

-3x(x-1)+6x-3x-(15)=0

We add all the numbers together, and all the variables

3x-3x(x-1)-15=0

We multiply parentheses

-3x^2+3x+3x-15=0

We add all the numbers together, and all the variables

-3x^2+6x-15=0

a = -3; b = 6; c = -15;
Δ = b2-4ac
Δ = 62-4·(-3)·(-15)
Δ = -144
Delta is less than zero, so there is no solution for the equation

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