Given f(x)=x^3+2x, find [ f(x+c)-f(x) ] / c.
please explain?
2006-09-14 09:46:51 · 7 answers · asked by Anonymous in Education & Reference ➔ Homework Help
3x^2+c^2+3cx+2
You put (x+c) into all values of x in the f(x). Then subtract the f(x). Then divide by c. If you plug in 2 for x and 3 for c you can check my work.
2006-09-14 10:02:18 · answer #1 · answered by Lil Fetey 2 · 0⤊ 0⤋
Okay, first you have to find f(x+c). Basically, how you would do this is by subsituting (x+c) into the original equation whenever you see an x, to get f(x+c)=(x+c)^3 + 2(x+c). Once you find that out, you can figure out the rest on you own, I'm sure. Good luck!
2006-09-14 16:57:18 · answer #2 · answered by frodobaggins115 4 · 0⤊ 0⤋
Lil Fetey is correct. Give 'em the bonus.
And Carson's Girl, this is the Homework Help section. The idea is to give people help, not berate them for asking for help...
2006-09-14 17:58:45 · answer #3 · answered by sargeslope 2 · 0⤊ 0⤋
First you need to solve the given....then plug that answer into the second equation
2006-09-14 16:50:37 · answer #4 · answered by cabjr1961 4 · 0⤊ 1⤋
Its not that hard
just plug in x-c for x into the equation, then subtract the original equation from that answer
2006-09-14 16:50:12 · answer #5 · answered by Anonymous · 0⤊ 2⤋
((x+c)^3 + 2(x+c) - (x^3 +2x ))/c
Now work that out
2006-09-14 16:54:51 · answer #6 · answered by Philip W 7 · 0⤊ 0⤋
do your own work!
2006-09-14 16:48:22 · answer #7 · answered by girly girl!*! 2 · 0⤊ 2⤋