Question

Find the sum: (3x2 + 5x + 8) + (6x2 + 3x + 2)

Answer 1

PLEASE HELP

Answer 2

Collect like terms. add up the x^2 terms, add up the x terms, add up the numeric terms.

For example
\[(x^2 + 2x + 1) + (3x^2 + 4x + 2) = (1+3)x^2 + (2+4)x + (1+2) = 4x^2 + 6x + 3\]

Answer 3

Then what ?

Answer 4

Then you're done!

What do you get?

Answer 5

3X²+2X+6 ?

Answer 6

What is 3x^2 + 6x^2?
What is 5x + 3x?
What is 8 + 2?
What do you get when you add those three answers together?

Answer 7

\[(aX^{2}+bX+c)+(qX^{2}+rX+s)=(a+q)X^{2}+(b+r)X+(c+s)\]

Answer 8

(3x2 + 5x + 8) + (6x2 + 3x + 2)
3x^2+ 6x^2= 9x^2
5x+3x=8x
8+2=10
So you get 9x^2 +8x +10