Question

Which row of Pascal’s triangle would you use to expand (2x 10y)15?

Answer 1

The correct answer is:

Row 15.

Explanation:

Each row of Pascal's triangle corresponds with the exponent of a binomial. The first row is a binomial to the first power; the second row, to the second power; the third row, to the third power; etc.

For the 15th power, we would want the 15th row of the triangle.

Answer 2

Row 15 which would be the numbers 1, 15, 105, 455, 1365,3003,5005,6435,6435, 5005, 3003, 1365,455,105,15,1 across.