What is the cube root of a^3+3a^2b+3ab^2+b^3?

Answer as guest — Start Free Practice Test to earn Practice PointsHow to earn pointsAsk a question+3Answer a question+1Someone answers yours+1Your Q gets upvoted+1Pioneer bonus (first 5)+5, ask questions & climb the leaderboard!

A a+b
B a+3b
C 3a+b
D 3a+3b

Show answer and explanation

Answer: A. a+b

The expression is the expansion of (a + b)^3 = a^3 + 3a^2b + 3ab^2 + b^3. Since it is a perfect cube of (a + b), its cube root is a + b.

Answering after opening this box earns no Practice Points.

8 answered 100% got it right

Rules for asking and answering

What is the cube root of a^3+3a^2b+3ab^2+b^3?

More questions like this