<PRE><B>Question 169867</B>
N(t) = -3t^3 + 23t^2 + 8t. 
a) Rewrite the formula by factoring the right-hand side completely.
N(t) = t(-3t^2 + 23t + 8)
---------------------------------
 
b) Use the factored version of the formula to find N(3). 
N(3) = 3(-3^3^2 + 23*3 + 8)
N(3) = 3(-27 + 69 + 8)
N(3) = 3(50) = 150
=======================
Cheers,
Stan H.</PRE>