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April 19, 2015

April 19, 2015

Posted by **Kaleb** on Sunday, December 5, 2010 at 12:56pm.

1) x^5-3x^4+3x^3-x^2=0

2)8x^3-12x^2+6x-1

3) x^4=16

- adv. alg. -
**Jen**, Sunday, December 5, 2010 at 1:10pmSorry, I don't remember how to do #1 and 2, but 3 is x=+-2

- adv. alg. -
**Henry**, Monday, December 6, 2010 at 11:24pmFinding roots of Eqs that are 3rd degree or higher is done mostly by trial and error.However, Excel Spread sheets made the task a little easier.

First, we find a number that will satisfy the given Eq. It was determined

that 0 and 1 were the only numbers that

satisfied your Eq. so the roots are:

1. x = 0, and x = 1.

2. I found only one root for this one:

X = 0.50.

3. X^4 = 16.

Take sqrt of both sides:

X^2 = 4,

Take sqrt of both sides and get:

x = +- 2.

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