SOLUTION: 80. Find all real or imaginary solutions to each equation. Use the method of your choice. w2=-225 30. Solve each equation by using the quadratic formula. -3x^2-2x-5=0

Question 255659: 80. Find all real or imaginary solutions to each equation. Use the method of your choice. w2=-225
30. Solve each equation by using the quadratic formula. -3x^2-2x-5=0
Found 2 solutions by richwmiller, drk:
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
w^2=-225
w=-15i
w=15i
where i=sqrt(-1)

Answer by drk(1908) (Show Source): You can put this solution on YOUR website!
#80.
since we have a negative sqrt, we get imaginary answers as

--
#30.
We can use the quadratic to get:

and then

and

finally

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