Anyone know this one?

$\displaystyle f(x)=9x^3-48x^2+64x$

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- Dec 14th 2009, 01:47 AMEmGFunctions
Anyone know this one?

$\displaystyle f(x)=9x^3-48x^2+64x$ - Dec 14th 2009, 01:54 AMRaoh
- Dec 14th 2009, 01:55 AMEmG
I did and when I did it I get stuck at $\displaystyle f(x)=x(9x^2-48x+64)$

- Dec 14th 2009, 01:58 AMRaoh
- Dec 14th 2009, 02:00 AMRaoh
Remember !

$\displaystyle (a-b)^2=a^2-2ab+b^2$

(Happy) - Dec 14th 2009, 02:02 AMEmG
Ummm.. Sadly I do not understand it very well or how to get the zeros from it algebraically.

- Dec 14th 2009, 02:08 AMRaoh
- Dec 14th 2009, 02:16 AMEmG
When I pluged it in I got 0=9 so would that mean that there is no zeros in the equation?

- Dec 14th 2009, 02:22 AMRaoh
- Dec 14th 2009, 03:10 AMmr fantastic