Question

SOMEONE PLEASE ANSWER THESE QUESTIONS!
1. What is (f-g)(x) given f(x)=3x^3-3x and g(x)=2x^2+5x?

2. Given: f(x)=4x^2-5 and g(x)=x+3
What is (fg)(x)?

3. Given: f(x)=x^4-7 and g(x)=x-2
What is (fg)(-3)?

Answer 1

1. \[3 x^3-2 x^2-8 x\]
2. I assume this is multiplication \[4 x^3+12 x^2-5 x-15\]
3. -88*-5=40

Answer 2

Let's try to guide the asker through the problem. Thank you.

Answer 3

You have to understand function. It may be the question is f(g (x))?

Answer 4

fog(x) ? fog(-3)