Question

Simplify the expression 5x − (3x^2 + 9x)

Answer 1

It's (-3x-4)x or -x(3x+4)

Answer 2

− (3x^2 + 9x)
When you are subtracting like that, the sign changes.

3x^2 becomes a negative.
The addition becomes subtraction.

So now it would look like: 5x - 3x^2 - 9x.

Combine like terms: 5x + (-9x) = -4x.

Now it looks like: -3x^2 - 4x.

Answer 3

@GoldPhenoix do you mind helping me with two pre-cal questions ?

Answer 4

Sorry Love. I did not learn pre-calc. I'm only 12. >_> So don't expect much from me.

Answer 5

It's Okay.