3x2+15=-6+x2

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Solution for 3x2+15=-6+x2 equation: 



3x^2+15=-6+x2

We move all terms to the left:

3x^2+15-(-6+x2)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

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

We add all the numbers together, and all the variables

2x^2+21=0

a = 2; b = 0; c = +21;
Δ = b2-4ac
Δ = 02-4·2·21
Δ = -168
Delta is less than zero, so there is no solution for the equation

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