f(x)=x2+ 1x + 2
___
4
g(x)=x^3+ 1
___x^2+X
2

Find (f + g)(a).

Question

f(x)=x2+ 1x + 2
               ___
                 4 
g(x)=x^3+ 1
                ___x^2+X
                 2

Find (f + g)(a).

anonymous · Answer

simply add the two together in order to do this tho first you have to get the denominators to equal

anonymous · Answer

then replace x with a

anonymous · Answer

? i'm horrible at math, i can't even do that much

anonymous · Answer

times the bottom by 1 but using 2/2

anonymous · Answer

so your bottom equation is 

$$\frac{x^3+x^2+x}{2}$$
correct?

anonymous · Answer

if so multiply by 2/2 and you'll get
$$\frac{2x^3+2x^2+2x}{4}$$

anonymous · Answer

now you can add them since their denominators are the same

anonymous · Answer

$$(f+g)=\frac{x^2+x+2}{4}+\frac{2x^3+2x^2+2x}{4}=\frac{3x^3+3x^2+2x+2}{4}$$

anonymous · Answer

ok..

anonymous · Answer

now simply interchange x with a

anonymous · Answer

$$\frac{3a^3+3a^2+2a+2}{4}=\frac{1}{4}(3a^3+3a^2+2a+2)$$

anonymous · Answer

since a has no given value that will be your answer

anonymous · Answer

ok, i keep looking it over and over to see if i understand and i am slowly getting it... thank you!.. i'm going to keep looking at it so i understand it better.