Answer
8$a^{3}$ - 14$a^{2}$ + 23a - 9
Work Step by Step
(2a - 1)(4$a^{2}$ - 5a + 9) =
Use the distributive property.
2a(4$a^{2}$) +2a(-5a) +2a(9) -1(4$a^{2}$) -1(-5a) -1(9) =
8$a^{3}$ -10$a^{2}$ +18a -4$a^{2}$ +5a -9 =
Simplify.
8$a^{3}$ - 14$a^{2}$ + 23a - 9
