3x2+8=x2-9

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Solution for 3x2+8=x2-9 equation: 



3x^2+8=x2-9

We move all terms to the left:

3x^2+8-(x2-9)=0

We add all the numbers together, and all the variables

3x^2-(+x^2-9)+8=0

We get rid of parentheses

3x^2-x^2+9+8=0

We add all the numbers together, and all the variables

2x^2+17=0

a = 2; b = 0; c = +17;
Δ = b2-4ac
Δ = 02-4·2·17
Δ = -136
Delta is less than zero, so there is no solution for the equation

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