- #1
ability
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I have a lot of questions and I know I'm supposed to show all my work but the post would be insanely long, so I will show you what answers I have come up with on the ones that I managed to get that far. I know how to do these but I often get hung up on the fractions and trying to get rid of the exponents
For functions:
f(x)= (x+1)/(x-1)
g(x)= 1/x
Find:
A. f+g
I got 2x+2/x^2-x
B. f-g
I got 0
C. f*g
I got x+1/x^2-x
D. f/g
I got x^2+1/x-1
E. f o g (x)
I got 2x/1-x
These ones I am having difficulty with, sorry for not showing my work, some answers would be very much appreciated though.
Multiply:
a. (x^2-2)^3
b. (x^2+3x+5)(x+2)
c. (2x^2-6x)(2x-4)
Divide and define restrictions:
a. (2x^3-x^2+2x-3) / (x-1)
b. (x^5-x^4-4x^3+8x^2-32x+48) / (x^2+4)
c. (x^5-1) (x-1)
Thanks again for the help, hopefully this is just the forum I was looking for!
For functions:
f(x)= (x+1)/(x-1)
g(x)= 1/x
Find:
A. f+g
I got 2x+2/x^2-x
B. f-g
I got 0
C. f*g
I got x+1/x^2-x
D. f/g
I got x^2+1/x-1
E. f o g (x)
I got 2x/1-x
These ones I am having difficulty with, sorry for not showing my work, some answers would be very much appreciated though.
Multiply:
a. (x^2-2)^3
b. (x^2+3x+5)(x+2)
c. (2x^2-6x)(2x-4)
Divide and define restrictions:
a. (2x^3-x^2+2x-3) / (x-1)
b. (x^5-x^4-4x^3+8x^2-32x+48) / (x^2+4)
c. (x^5-1) (x-1)
Thanks again for the help, hopefully this is just the forum I was looking for!