(4a+2)^3 find the product

Question

I dont know what to do or how to start the problem. Math is not an easy subjuct for me, please help!!

Answer 1

(4a + 2)³

(4a + 2)(4a + 2)(4a + 2)           multliply first two with FOIL

(16a² +16a + 4)(4a + 2)           multiply these using distributive

16a²(4a) + 16a(4a) + 4(4a) + 16a²(2) + 16a(2) + 4(2)

64a³ + 64a² + 16a + 32a² + 32a + 8

64a³ + 96a² + 48a + 8