SOLUTION: solve: 5t^3=45t. Thank you so much!

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Question 358459: solve: 5t^3=45t. Thank you so much!
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi,

Solving the cubic equation for its 3 solutions

5t^3=45t

5t^3 -45t = 0

5t(t^2 - 9) = 0

t = 0

(t-3)(t+3)=0

t = 3

t = -3

Solutions set is -3,0,3