View Full Version : HELP! Easy math, (for you guys)

Hakkola

10-14-2003, 05:24 PM

Solve the following equation in the real number system.

3x^3-x^2-15x+5=0

Basically I'm not even sure exactly what's being asked of me. Help please?

kaput

10-14-2003, 06:36 PM

.

Hakkola

10-14-2003, 08:36 PM

That's what I was thinking, but wasn't sure, thanks.

edit - shit, got stuck.

D'z Nutz

10-14-2003, 08:48 PM

Maybe not necessarily solve for x, but find the factors, that's for sure. Maybe synthetic division will be the easiest way to do that.

Hakkola

10-14-2003, 09:25 PM

It was a fraction, i figured it out 1/3, thanks though guys. I was thinking syn div at first but then I remembered the rational root theorem.

Had to use a calculator to do 3(1/3)^3 - (1/3)^2, anyone know how to do this w/o a calculator?

you mean how to solve

3(1/3)^3 - (1/3)^2 without a calculator?

Write it out and do it by hand!

kaput

10-14-2003, 10:18 PM

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