SOLUTION: How would you do a problem like x(cubic) - 14(squared)x - 60x = 0?

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Question 7325: How would you do a problem like x(cubic) - 14(squared)x - 60x = 0?
Answer by longjonsilver(2297) About Me  (Show Source):
You can put this solution on YOUR website!
first, always try to factorise it, if you can, so...

x%5E3+-+14x%5E2+-+60x+=+0
x%28x%5E2+-+14x+-+60%29+=+0

and now try to factorise the quadratic:

1x60
2x30
3x20
4x15
5x12
6x10

i don't think it factorises easily so you will have to use the quadratic formula.

Your 3 answers will be x=0, x=7%2Bsqrt%28109%29 and x=7-sqrt%28109%29

jon.