set up the following addition using a vertical format and find the sum of the given polynomials.
3x 2 + 2x - 5 and -4 + 7x 2
-x2+ 9x- 9
21x2+ 2x+ 20
10x2- 5x- 1
10x2+ 2x- 9

Question

Asked 4/29/2013 11:29:14 AM

Updated 5/27/2014 8:36:56 PM

1 Answer/Comment

This conversation has been flagged as incorrect.

Flagged by yeswey [5/27/2014 8:36:56 PM]

Expert answered|jeifunk|Points 9548|

Question

Asked 4/29/2013 11:29:14 AM

Updated 5/27/2014 8:36:56 PM

1 Answer/Comment

This conversation has been flagged as incorrect.

Flagged by yeswey [5/27/2014 8:36:56 PM]

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3

(3x^2 + 2x - 5) + (-4 + 7x^2)

= 3x^2 + 2x - 5 - 4 + 7x^2

= 10x^2 + 2x - 9

in vertical format:

3x^2 + 2x - 5

7x^2 (+ 0) - 4

- - - - - - - - - -

10x^2 + 2x - 9

= 3x^2 + 2x - 5 - 4 + 7x^2

= 10x^2 + 2x - 9

in vertical format:

3x^2 + 2x - 5

7x^2 (+ 0) - 4

- - - - - - - - - -

10x^2 + 2x - 9

Added 5/27/2014 8:36:40 PM

This answer has been confirmed as correct and helpful.

Confirmed by yumdrea [5/27/2014 10:52:00 PM]

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