Question

what is the sum of the polynomials?\\(\left(6x + 7 + x^{2}\
ight)+\left(2x^{2}-3\
ight)\\)\\(\bigcirc -x^{2}+6x + 4\\)\\(\bigcirc 3x^{2}+6x + 4\\)\\(\bigcirc 9x + 4\\)\\(\bigcirc 9x^{2}+4\\)

Explanation:

Step1: Rearrange like terms

$(x^2 + 2x^2) + 6x + (7 - 3)$

Step2: Combine $x^2$ terms

$3x^2 + 6x + (7 - 3)$

Step3: Combine constant terms

$3x^2 + 6x + 4$

Answer:

3x² + 6x + 4 (Option B)