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inessss [21]
3 years ago
11

Which polynomial represents the sum below? (3x2 + 3) + (3x2 + x + 4)

Mathematics
1 answer:
vaieri [72.5K]3 years ago
8 0
Hi there! The answer is C.

(3 {x}^{2}  + 3 ) + (3 {x}^{2}  + x+  4) =
First we work out the parenthesis, which is easy, because we can just remove them.

3 {x}^{2}  + 3 + 3 {x}^{2}  + x + 4 =
Now rearrange our expression (in order to collect the terms later).

3 {x}^{2}  + 3 {x}^{2}  + x + 3 + 4 =
Now we can collect the terms.

6 {x}^{2}  + x + 7
The answer is C.

~ Hope this helps you!
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