to answer that i would subtract the 9 from both sides giving you x^2=-9
then i would take the square root of both sides giving x=-3
Does that make sense?
what is the solution set of :
x^2 + 9 = 0
2 answers
Michele's answer is not correct
x^=-9 has no solution in the set of real numbers (x=-3 is a real number solution)
You will have to use imaginary or complex numbers
x^2 = -9
x = ±√-9
x = ± 3i where i = √-1
x^=-9 has no solution in the set of real numbers (x=-3 is a real number solution)
You will have to use imaginary or complex numbers
x^2 = -9
x = ±√-9
x = ± 3i where i = √-1
9 answers