-4r^2=1

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Solution for -4r^2=1 equation: 



-4r^2=1

We move all terms to the left:

-4r^2-(1)=0

a = -4; b = 0; c = -1;
Δ = b2-4ac
Δ = 02-4·(-4)·(-1)
Δ = -16
Delta is less than zero, so there is no solution for the equation

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