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January 30, 2015

January 30, 2015

Posted by **Rebekah** on Thursday, November 1, 2012 at 7:49pm.

1. x^2+3

My Answer: (x+iroot 3)(x-iroot3)

2. x^2-2x+3

MA: (x-(1+iroot2))(x-(1-iroot2))

3. x^4+x

MA: IM not sure how to do it! can you help?

4. x^5-x^4+5x^3

MA: x^3(x-(1+iroot19/2))(x-(1-iroot19/2))

5. 3x^2+7

MA: NOT sure how to do

6. x^6+3x^5-10x^4-4x^2-12x+40

MA: (x-2)(x+5)(x+iroot2)(x-iroot2)(x+root2) (x-root2)

THANKS SO MUCH!!!

- check my precalc -
**bobpursley**, Thursday, November 1, 2012 at 8:38pm3. I dont see linear factors coming out of this.

5. (xsqrt4+isqrt7)(xsqrt3-isqrt7)

- check my precalc -
**Rebekah**, Thursday, November 1, 2012 at 9:05pmthanks

are all the others correct?

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