7-5x^2=8

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Solution for 7-5x^2=8 equation:



7-5x^2=8
We move all terms to the left:
7-5x^2-(8)=0
We add all the numbers together, and all the variables
-5x^2-1=0
a = -5; b = 0; c = -1;
Δ = b2-4ac
Δ = 02-4·(-5)·(-1)
Δ = -20
Delta is less than zero, so there is no solution for the equation

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