r^2/7=-28

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Solution for r^2/7=-28 equation: 



r^2/7=-28

We move all terms to the left:

r^2/7-(-28)=0

We add all the numbers together, and all the variables

r^2/7+28=0

We multiply all the terms by the denominator


r^2+28*7=0

We add all the numbers together, and all the variables

r^2+196=0

a = 1; b = 0; c = +196;
Δ = b2-4ac
Δ = 02-4·1·196
Δ = -784
Delta is less than zero, so there is no solution for the equation

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