mazielynn84 mazielynn84

13-03-2019
Mathematics

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Will mark brainliest if right and show your work...

What is the sum of the polynomials?

(9x^4-13x^3-x-7)+(7x^3-2x+1)

Respuesta :

laurellee27 laurellee27

13-03-2019

9x^4 - 6x^2 - 3x - 6

(9x^4-13x^3-x-7)+(7x^3-2x+1)

Sort the terms by their powers, as x's with the same powers can be added together:

9x^4

-13x^3 + 7x^3 = -6x^3

-x - 2x = -3x

-7 +1 = -6

9x^4 - 6x^2 - 3x - 6

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