Question

$31^3+18^3-37^3+210$ is equal to :

• A. -36810
• B. -14820
• C. -45670
• D. -23450

Answer 1

Answer:

B. -14820

Let’s compute step by step:

$31^3 = 29791,\quad 18^3 = 5832,\quad 37^3 = 50653$

Now substitute:
$31^3 + 18^3 - 37^3 + 210 = 29791 + 5832 - 50653 + 210$
$= 35623 - 50653 + 210$
$= -15030 + 210 = -14820$