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Which of the following is the correct identity for (x + y)³?

Practice Questions

1 question
Q1
Which of the following is the correct identity for (x + y)³?
  1. x³ + y³ + 3xy(x + y)
  2. x³ + y³ - 3xy(x + y)
  3. x³ + y³ + 3xy²
  4. x³ - y³

Questions & Step-by-step Solutions

1 item
Q
Q: Which of the following is the correct identity for (x + y)³?
Solution: (x + y)³ = x³ + y³ + 3xy(x + y) by the binomial expansion.
Steps: 0

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