Simplify the following.
(3a + b)3 + (3a - b)3
Answers
Answered by
7
Answer: 18a
Step-by-step explanation:
(3a+b)3 + (3a-b)3
= (3*3a + 3*b) + (3*3a - 3*b)
= 9a + 3b + 9a - 3b
= (9a+9a) + (3b-3b)
= 18a + 0
= 18a
Similar questions