Question

Choose the correct sum of the polynomials (4x3 - 2x - 9) + (2x3 + 5x + 3).

6x3 - 3x - 6

2x3 - 7x - 12

6x3 + 3x - 6

2x3 + 3x - 3
please help

Answer 1

it's just addition.
give it a try.

Answer 2

\[\large 4x^3 - 2x - 9 + 2x^3 + 5x + 3 = ?\]

Answer 3

can you walk me through it please

Answer 4

Add the terms that have the same power together.
\[\large 4x^3 + 2x^3 = ?\]
\[\large 5x - 2x = ?\]
\[\large 3 - 9 = ?\]

Answer 5

What do you get from those?

Answer 6

6x^3

Answer 7

correct, keep going.

Answer 8

3

Answer 9

3x*

Answer 10

and the last one is?

Answer 11

lol yes that what i mean

Answer 12

-6

Answer 13

Correct, so when you add them all back together you get:
\[\large 6x^3 + 3x - 6\]

Answer 14

thank you do you mind helping me with more

Answer 15

sure.

Answer 16

open up a new question.