Add the following

(-8^2-2x+4)+(x^2-9x+7)

A)9x^2-7x+11
B)-8x^2+11x+11
C)-7^2-11x+11
D)-7x^4-11x^2+11

clearly this has to be C

To add the given expressions (-8^2 - 2x + 4) + (x^2 - 9x + 7), we need to simplify each expression first and then combine like terms.

Let's start by simplifying the expression (-8^2 - 2x + 4).
-8^2 means -8 squared, which equals -64.
So the first expression simplifies to -64 - 2x + 4.

Now, let's simplify the expression (x^2 - 9x + 7).

Now we can combine the simplified expressions:
(-64 - 2x + 4) + (x^2 - 9x + 7)

To do this, we group similar terms:
(-64 + 4) + (-2x - 9x) + (x^2 + 7)

-64 + 4 equals -60.
-2x - 9x equals -11x.

Therefore, the expression simplifies to x^2 - 11x - 60.

So, the final simplified form of the given expression is x^2 - 11x - 60.

None of the answer choices provided match the simplification of the expression.