3x^2+30=x^2-40

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Solution for 3x^2+30=x^2-40 equation: 



3x^2+30=x^2-40

We move all terms to the left:

3x^2+30-(x^2-40)=0

We get rid of parentheses

3x^2-x^2+40+30=0

We add all the numbers together, and all the variables

2x^2+70=0

a = 2; b = 0; c = +70;
Δ = b2-4ac
Δ = 02-4·2·70
Δ = -560
Delta is less than zero, so there is no solution for the equation

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