Help me with my math problem please

Question

anonymous · Answer

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anonymous · Answer

Suppose that the functions g and h are defined for all real numbers x as follows. g(x)=x-3    h(x)=3x^2. Write the expressions for (g*h)(x) and (g=h)(x) and evaluate (g-h)(x)

anonymous · Answer

Thanks for helping me

anonymous · Answer

Data do you know an answer for me?

anonymous · Answer

what's that second one, (g=h)(x) ???

anonymous · Answer

sorry (g+h)(x)

anonymous · Answer

ok... and is that first one multiplication or composition?

anonymous · Answer

multiplication

anonymous · Answer

you think you can figure it out for me?

anonymous · Answer

i don't want to... but i can help you figure it out for yourself, if you're willing...

anonymous · Answer

Ok, I think I have already figured out the answers... if I run those by you will you tell me if they are correct?

anonymous · Answer

sure...

anonymous · Answer

ok (g*h)(x) = -9x^2 +3x^3

anonymous · Answer

correct?

anonymous · Answer

yep

anonymous · Answer

ok, now can you tell me the answer to the second one... So I know for sure you know how to do them... and then I will give you the answer to the evaluation one

anonymous · Answer

haha... nice try...  i don't need to prove myself...

anonymous · Answer

I just wanna make sure lol

anonymous · Answer

ok is the answer to the second one 3x^2 +x-3?

anonymous · Answer

you can look at my profile and see the type of questions i answered in the past... i

anonymous · Answer

i know how to do this, trust me...

anonymous · Answer

ok cool

anonymous · Answer

yep.. second one is correct

anonymous · Answer

ok and the last one is -8?

anonymous · Answer

Or wait, actually -7

anonymous · Answer

??? how did you get that last one???

anonymous · Answer

I wrote the expression for (g-h)(x) which is -3+x+-3x^2

anonymous · Answer

right?

anonymous · Answer

yes, but you can simplify that so that you don't have that "+-" thingy...
put it in standard form...

anonymous · Answer

Then I put -1 in for the x's and simplified

anonymous · Answer

-3 + x -3x^2?

anonymous · Answer

why did you put -1 in for x???  that was not part of the question...  or was it?

anonymous · Answer

correct..

anonymous · Answer

evaluate the equation (g-h)(-1)

anonymous · Answer

shoot I forgot to put the -1 in at the top lol sorry

anonymous · Answer

ok... -7 is correct when you stick in -1 for x....

anonymous · Answer

good work....

anonymous · Answer

thanks

anonymous · Answer

If you hold on for like 2 minutes I will prolly have another one for you... and what are medals and can I give one to you?