3x=x2+7

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Solution for 3x=x2+7 equation: 



3x=x2+7

We move all terms to the left:

3x-(x2+7)=0

We add all the numbers together, and all the variables

-(+x^2+7)+3x=0

We get rid of parentheses

-x^2+3x-7=0

We add all the numbers together, and all the variables

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

a = -1; b = 3; c = -7;
Δ = b2-4ac
Δ = 32-4·(-1)·(-7)
Δ = -19
Delta is less than zero, so there is no solution for the equation

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