## Algebra: A Combined Approach (4th Edition)

$-2x^{2} +12x +11$
There are two numbers with the variable $x^{2}$ when you add these like terms you get: $5x^{2} - 7x^{2} = -2x^{2}$ There are two numbers with the variable $x$ when you add these like terms you get: $4x+8x =12x$ There is only one constant term: $11$ Add all of these together: $-2x^{2} +12x +11$