Answer:
[tex]11x^2-x+15[/tex]
A is the correct option.
Step-by-step explanation:
We have to find the sum of the polynomials [tex](x^2-x+8)+(10x^2+7)[/tex]
On removing the parentheses, we get
[tex]x^2-x+8+10x^2+7[/tex]
Group the like terms
[tex]x^2+10x^2-x+8+7[/tex]
Combine the like terms
[tex]11x^2-x+15[/tex]
Therefore, the sum of the polynomials is [tex]11x^2-x+15[/tex]
A is the correct option.
