SOLUTION: Please help. Find all real or imaginary solution to each equation. 1. w^2 = -225 2. 3y^2 + 4y -1 = 0

Question 179161: Please help.
Find all real or imaginary solution to each equation.
1. w^2 = -225
2. 3y^2 + 4y -1 = 0
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Find all real or imaginary solution to each equation.
1. w^2 = -225
w^2+225 = 0
(w+15i)(w-15i) = 0
w = -15i or w = 15i
--------------------------
2. 3y^2 + 4y -1 = 0
y = [-4 +- sqrt(16 - 4*3*-1)]/6
y = [-4 +- sqrt(28)]/6
y = [-4 +- 2sqrt(7)]/6
y = [(-2/3) +- (1/3)sqrt(7)]
================================
Cheers,
Stan H.

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