-x2+6x-8=3x+7

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Solution for -x2+6x-8=3x+7 equation: 



-x2+6x-8=3x+7

We move all terms to the left:

-x2+6x-8-(3x+7)=0

We add all the numbers together, and all the variables

-1x^2+6x-(3x+7)-8=0

We get rid of parentheses

-1x^2+6x-3x-7-8=0

We add all the numbers together, and all the variables

-1x^2+3x-15=0

a = -1; b = 3; c = -15;
Δ = b2-4ac
Δ = 32-4·(-1)·(-15)
Δ = -51
Delta is less than zero, so there is no solution for the equation

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