15-2x^2=21

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Solution for 15-2x^2=21 equation: 



15-2x^2=21

We move all terms to the left:

15-2x^2-(21)=0

We add all the numbers together, and all the variables

-2x^2-6=0

a = -2; b = 0; c = -6;
Δ = b2-4ac
Δ = 02-4·(-2)·(-6)
Δ = -48
Delta is less than zero, so there is no solution for the equation

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