-5x^2+7=7

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



-5x^2+7=7

We move all terms to the left:

-5x^2+7-(7)=0

We add all the numbers together, and all the variables

-5x^2=0

a = -5; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·(-5)·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{0}{-10}=0$

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