Question

which row of pascals triangle would you use to expand (2x + 10y)^15?
row 10
row 12
row 15
row 25

Explanation:

Step1: Recall binomial expansion rule

The coefficients of the binomial expansion \((a + b)^n\) are given by the \(n\) - th row of Pascal's triangle.

Step2: Identify the power in the binomial

In the binomial \((2x + 10y)^{15}\), the power \(n = 15\).

Answer:

C. row 15