what is the sum of the polynomials?\n$(6x + 7 + x^{2})+(2x^{2}-3)$\n$-x^{2}+6x + 4$\n$3x^{2}+6x + 4$\n$9x +…
what is the sum of the polynomials?\n$(6x + 7 + x^{2})+(2x^{2}-3)$\n$-x^{2}+6x + 4$\n$3x^{2}+6x + 4$\n$9x + 4$\n$9x^{2}+4$
Answer
Explanation:
Step1: Remove parentheses
$(6x + 7+x^{2})+(2x^{2}-3)=6x + 7+x^{2}+2x^{2}-3$
Step2: Combine like - terms
$x^{2}+2x^{2}=3x^{2}$, and $7 - 3=4$, and the $6x$ term remains the same. So the sum is $3x^{2}+6x + 4$
Answer:
B. $3x^{2}+6x + 4$