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Answer:
(f•g)(x) = 3x^3 +6x^2 -5x -10
Step-by-step explanation:
(f•g)(x) = f(x)•g(x) = (x +2)(3x^2 -5)
= x(3x^2 -5) +2(3x^2 -5) . . . . . . . . use the distributive property
= 3x^3 -5x +6x^2 -10 . . . . . . . and again
(f•g)(x) = 3x^3 +6x^2 -5x -10 . . . . put in standard form
