Posted by **meghan** on Friday, September 2, 2011 at 12:31am.

If f(x)=3x^2-x+2 then

what is 2f(a)?

What is f(2a)?

What is f(a^2)?

What is [f(a)]^2?

What is f(a+h)?

- AP Calculus -
**Anonymous**, Friday, September 2, 2011 at 12:51am
2 f ( a ) = 2 ( 3 a ^ 2 - a + 2 ) =

6 a ^ 2 - 2a + 4

f ( 2a ) = 3 [ ( 2a ) ^ 2 ] - 2a+ 2 =

3 ( 4a ^ 2 ) - 2a + 2 =

12 a ^ 2 - 6 a + 6

f ( a ^ 2 ) = 3 [ ( a ^ 2 ) ^ 2 ] - a ^ 2 + 2 =

3 a ^ 4 - a ^ 2 + 2

[f ( a ) ] ^ 2 = ( 3 a ^ 2 - a + 2 ) ^ 2 =

9 a ^ 4 - 6 a ^ 3 +1 3 a ^ 2 - 4 a + 4

f ( a + h ) = 3 a ^ 2 + 6 a h - a + 3 h ^ 2 - h + 2

- AP Calculus -
**Anonymous**, Friday, September 2, 2011 at 12:54am
f ( a + h ) = 3 ( a + h ) ^ 2 - ( a + h ) + 2 =

3 a ^ 2 + 6 a h - a + 3 h ^ 2 - h + 2

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