what is the simpler form of the expression (5d+2)(3d^2+8d-3)

Question

A: 15d^3 + 46d^2 + 1d - 6
B: 15d^3 + 34d^2 - 1d - 6
C: 15d^3 - 34d^2 + 1d - 5
D: 15d^3 + s4d^2 - 1d - 5

My answer is A or B.

Answer 1

5d(3d^2+8d-3)
+
2 (3d^2+8d-3)
------------- add and simplify
15d^3 +40 d^2 - 15 d
+ 6 d^2 + 16 d -6
------------------
15d^3 + 46 d^2 + 1 d - 6

Answer 2

thank you Damon ^^

Answer 3

You are welcome.