2006-06-30 03:30:17 · 5 answers · asked by Linda S 1 in Education & Reference ➔ Homework Help
substitute (3+h) for x and write it out:
x^2 becomes (3+h)^2, which is 9 + 6h + h^2
3x becomes 3(3+h), which is 9+3h
9 + 6h + h^2 - 9 - 3h
h^2 + 3h is the result
2006-06-30 03:33:10 · answer #1 · answered by Bill S 6 · 0⤊ 0⤋
Start by replacing every "x" with a "3 + h"
k(3+h) = (3+h)^2 - 3(3 + h)
=(9 + 6h + h^2) - 9 - 3h
=9 - 9 + 6h -3h + h^2
=h^2 + 3h
2006-07-01 16:21:05 · answer #2 · answered by Anonymous · 0⤊ 0⤋
If k(x)=x^2-3x then k = x-3
Then substitute x-3 for k like this
(x-3)(3+h) this is one possible answer, or you could multiply this through and get...
3x + xh - 9 - 3h this is an answer too.
2006-06-30 04:29:56 · answer #3 · answered by cjm 2 · 0⤊ 0⤋
h^2+3h+9
2006-06-30 03:34:10 · answer #4 · answered by Kris C 2 · 0⤊ 0⤋
just tell me what does ' ^ ' stand for
i'll help u surely
2006-06-30 03:32:00 · answer #5 · answered by reuben 2 · 0⤊ 0⤋