Perform the requested operation or operations.

f(x) = 4x + 7, g(x) = 3x2

Find (f + g)(x).

Question

Perform the requested operation or operations.

f(x) = 4x + 7, g(x) = 3x2

Find (f + g)(x).

anonymous · Answer

Help me Please I guess it's this but dont know if im right or no 12x3 + 21x

lxelle · Answer

(f + g)(x). it just means f(x)+g(x)

anonymous · Answer

Wait you mean i'm going to add and multiply

lxelle · Answer

f(x)+g(x) What do you think?

anonymous · Answer

I'm confused here is that the formula

jhonyy9 · Answer

@barbie15 so what you have got wann being f(g(x))

jhonyy9 · Answer

sorry the last term need being 21x^2

lxelle · Answer

Okay, here it says (f+g)x, and not f(g(x)). Dont  get confused. the latter one is a multiplication of both functions. as for your case its addition. just add up both functions.

anonymous · Answer

Jhon where did u get that 21x^2

lxelle · Answer

so f(x) + g(x)
4x + 7+3x^2 
rearrange, 3x^2+4x+7

lxelle · Answer

hope i helped. :)

jhonyy9 · Answer

so than you see what you have got there @barbie15

anonymous · Answer

Thanks @LXelle

lxelle · Answer

No problem. :)