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13-02-2018
Mathematics

contestada

Find the sum of these polynomials.

(x8 - x + 7) + (9x8 + 6) =

A. 9x8 - x + 13
B. 9x16 - x + 13
C. 10x16 - x + 13
D. 10x8 - x + 13

Respuesta :

13-02-2018

=(x^8 - x + 7) + (9x^8 + 6)
Combine like terms
=(x^8+9x^8)-x+(7+6)
=10x^8-x+13

D) 10x^8-x+13 is the answer.

Hope this helps! :)

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