Question

Find the sum of the polynomials.

(3x3 + 4x2 - 2x + 1) + (x4 - x3 + 5x2 + 2x + 3)

A. x4 + 2x3 + 9x2 + 4
B. x4 + 4x3 + 9x2 + 4
C. x4 + 2x3 + 9x2 + 4x + 4
D. x4 + 2x3 + 9x2 - 4x + 4

Answer 1

jst add the like terms.

Answer 2

Do you understand which ones are like terms?

Answer 3

noo

Answer 4

4x^2 and 2x^2 are like terms. similarly 4x and 2x are like terms. Nw do u get?

Answer 5

idk ho w to do this at all

Answer 6

Nw let me group the like terms for u
x^4+(3x^3-x^3)+(4x^2+5x^2)+(-2x+2x)+(1+3)
Nw see if u can simplify.

Answer 7

You look at the variable(s) and their powers in problems like this. In this case, the only variable is x. Any term that has x^4 only combines with other terms having x^4; any term that has x^3 only combines with other terms having x^3 and so on...

Maybe it would help if you lined them up and added:
x4 - x3 + 5x2 + 2x + 3
3x3 + 4x2 - 2x + 1
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