functions,f(x), g(x) 3 answers
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2 Answers

(f*g)(x) basically just means to multiply the two functions.  So does (g*f)(x).  (unless it is supposed to be a composite)

Since multiplication is commutative then both a and b will have the same answer.  They are binomials so you need to FOIL.

(4x-5)(3x^2-1) = 12x^3 - 15x^2 - 4x + 5

then for part c, evaluate when x=2

12(2)^3 - 15(2)^2 -4(2) + 5 = 96 - 60 - 8 +5 = 33
by Level 5 User (11.9k points)
f(x) = x3 + 5, g(x) = x2 - 1, and h(x) = 2x + 7.

so find the rule for : f-g

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