Final answer:
To perform the given operation -10x^2+9x--6x+4, combine like terms to get -7x + 4.
Step-by-step explanation:
To perform the given operation -10x^2+9x--6x+4, we need to combine like terms. First, let's simplify -10x^2 and -6x by combining their coefficients:
-10x^2 - 6x = (-10 - 6)x = -16x
Now we can rewrite the expression as:
-16x + 9x + 4
Combining like terms, we get:
-16x + 9x + 4 = -7x + 4
So, the simplified expression is -7x + 4.