Find the sum of these polynomials (x^6 + x + 9) + (7x^6 + 5) =

Question

asked Dec 4, 2020 230k views

2 Answers

Dean Seo · Answer 1 · 2020-12-07T13:29:30+0000

Answer:

8 x^6 + x + 14

Explanation:

Simplify the following:

7 x^6 + x^6 + x + 5 + 9

Grouping like terms, 7 x^6 + x^6 + x + 5 + 9 = (x^6 + 7 x^6) + x + (9 + 5):

(x^6 + 7 x^6) + x + (9 + 5)

x^6 + 7 x^6 = 8 x^6:

8 x^6 + x + (9 + 5)

9 + 5 = 14:

Answer: 8 x^6 + x + 14

Arbitur · Answer 2 · 2020-12-08T16:54:46+0000

For this case we must find the sum of the following polynomials:

$x ^ 6 + x + 9\ and\ 7x ^ 6 + 5$

We have:

(x ^ 6 + x + 9) + (7x ^ 6 + 5) =

We eliminate parentheses:

x ^ 6 + x + 9 + 7x ^ 6 + 5 =

We add similar terms:

$x ^ 6 + 7x ^ 6 + x + 9 + 5 =\\8x ^ 6 + x + 14$

Finally we have that the sum of the polynomials is:
8x ^ 6 + x + 14

Answer: