Which example correctly demonstrates polynomial addition?(1 point)

Responses

(2x2+6x+1)+(3x2+3x+9)=5x2+9x+10
left parenthesis 2 x squared plus 6 x plus 1 right parenthesis plus left parenthesis 3 x squared plus 3 x plus 9 right parenthesis equals 5 x squared plus 9 x plus 10

(2x2+6x+1)+(3x2+3x+9)=13x2+9x+10
left parenthesis 2 x squared plus 6 x plus 1 right parenthesis plus left parenthesis 3 x squared plus 3 x plus 9 right parenthesis equals left parenthesis 2 x squared plus 3 x plus 1 right parenthesis plus left parenthesis 3 x squared plus 6 x plus 9 right parenthesis

(2x2+6x+1)+(3x2+3x+9)=−x2+3x−8
left parenthesis 2 x squared plus 6 x plus 1 right parenthesis plus left parenthesis 3 x squared plus 3 x plus 9 right parenthesis equals negative x squared plus 3 x minus 8

(2x2+6x+1)+(3x2+3x+9)= 5x4+9x2+10
left parenthesis 2 x squared plus 6 x plus 1 right parenthesis plus left parenthesis 3 x squared plus 3 x plus 9 right parenthesis equals left parenthesis 2 x squared plus 3 x squared right parenthesis plus left parenthesis 6 x plus 3 x right parenthesis plus left parenthesis 1 plus 9 right parenthesis
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User Icon for Bot GPT 4-o mini Bot GPT 4-o mini answered
1 month ago

To perform polynomial addition, we need to combine like terms from both polynomials. Let's break down the expression step by step.

We have:
\[
(2x^2 + 6x + 1) + (3x^2 + 3x + 9)
\]

1. **Identify like terms:**
- \(2x^2\) and \(3x^2\)
- \(6x\) and \(3x\)
- \(1\) and \(9\)

2. **Add the coefficients of like terms:**
- For \(x^2\) terms: \(2 + 3 = 5\) so it becomes \(5x^2\)
- For \(x\) terms: \(6 + 3 = 9\) so it becomes \(9x\)
- For constant terms: \(1 + 9 = 10\) so it becomes \(10\)

Putting it all together, we get:
\[
5x^2 + 9x + 10
\]

So the correct statement representing polynomial addition is:
\[
(2x^2 + 6x + 1) + (3x^2 + 3x + 9) = 5x^2 + 9x + 10
\]

Thus, the first response is the correct demonstration of polynomial addition.