How do I add, subtract and divide polynomials?
Please give an example; Add:
(x5 + 7x3 - 9) + (4x5 - 2x3 + 13)

5x5 + 5x3 + 4
4x5 - 5x3 - 4
4x5 + 9x3 + 22
5x5 + 9x3 - 22

Question

How do I add, subtract and divide polynomials?
Please give an example; Add:
(x5 + 7x3 - 9) + (4x5 - 2x3 + 13)
 	
	5x5 + 5x3 + 4
	4x5 - 5x3 - 4
	4x5 + 9x3 + 22
	5x5 + 9x3 - 22

anonymous · Answer

Also, How to multiply!?

directrix · Answer

(x5 + 7x3 - 9) + (4x5 - 2x3 + 13)     @acriley3    Add like terms.

directrix · Answer

For example, the x^5 and the 4x^5 are like terms. They have the same last name of x^5.

So, x^5 + 4x^5 = 5x^5.  Now, add the other like terms to get the sum of the two polynomials.

anonymous · Answer

thanks!

directrix · Answer

What did you get for the sum of the two polynomials?