91.9k views
4 votes
What is the expanded form of ( x + 3y )³​

User Tsbertalan
by
8.8k points

2 Answers

2 votes

Answer:

x³ + 9x²y + 27xy² + 27y³

Explanation:

( x + 3y )² =

(x + 3y)(x + 3y) =

x² + 3xy + 3yx + 9y² =

x² + 6xy + 9y²

(x + 3y)(x² + 6xy + 9y²) =

x³ + 6x²y + 9xy² + 3yx² + 18xy² + 27y³ =

x³ + 9x²y + 27xy² + 27y³

Hope this helps :)

User Corrinne
by
8.0k points
2 votes
Expand it into 3 columns and expand it one by one
What is the expanded form of ( x + 3y )³​-example-1
User PeaceLeka
by
7.5k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories