Answer:
[tex]13x^2-6x-11[/tex]
Step-by-step explanation:
Start by setting up the expression:
[tex]8x^2+x-10-(-5x^2+7x+1)[/tex]
Note the " - - " makes a "+" and " - + " makes a "-"
[tex]8x^2+x-10+5x^2-7x-1[/tex]
Combine like terms
[tex]13x^2-6x-11[/tex]
