Question

Add.
(x5 + 7x3 - 9) + (4x5 - 2x3 + 13)

Answer 1

a) 5x5 + 5x3 + 4
b) 4x5 - 5x3 - 4
c) 4x5 + 9x3 + 22
d) 5x5 + 9x3 - 22

Answer 2

add like terms

Answer 3

You want to combine like terms. To combine like terms, you want to see if the variable and the exponent are the same.

Answer 4

ex: 10x^5 + 5x^5 is 15x^5. It's like term because they both have x^5.
10x^5 + x is not like term. The first term has x^5, while the second term only has x.
Do you understand?
I hope this help!

Answer 5

Btw, if you're going to write an exponent, make sure to add "^" to represent an exponent is coming. :)

Answer 6

so the answer is a

Answer 7

Correct!