Question

add the polynomials
(6x to the second+3x+2)+(9x to the second+9x)

Answer 1

Remember, you can only add like terms

what is

6x^2 + 9x^2 = ?

3x + 9x = ?

Make it easier for you to see how to add the like terms:

6x^2 + 9x^2 = x^2(6 + 9) = ??

3x + 9x = x(3 + 9) = ??

Answer 2

(6+9)=15
(3+9)=12

Answer 3

6x^2 + 9x^2 = x^2(6 + 9) = 15x^2
3x + 9x = x(3 + 9) = 12x

so now we have

6x^2+3x+2)+(9x^2+9x)

when we rearrange the terms

6x^2 + 9x^2 + 3x + 9x + 2

And you told me that 6x^2 + 9x^2 = 15x^2

so we get

15x^2 + 3x + 9x + 2

and that 3x + 9x = 12x , soo

15x^2 + 12x + 2

Ta-da. :)

Answer 4

and thats my answer?

Answer 5

yes :)