Answer:
-13x+10
Step-by-step explanation:
f(3)= 3(-3x+4), use distributive property to get -9x+12
g(-2)= -2(2x+1), same as above, and you'll get -4x-2
Since it asks for the product, I'm assuming it wants you to add the two answers together, in which you'd get -13x+10.
hope this helps :)
