precalculus
posted by kawn .
Given f(x) and g(x) below, find:
(a) f + g (b) f – g (c)f*g(d)f/g
Please show all of your work.
f(x) = 5x^25
g(x) = x – 7

What's the problem? Just substitute for f and g:
(c) f*g = (5x^25)(x7) = 5(x1)^2(x7) = x^3  9x^2 + 15x  7