The expression 81p^4 + 108 p^3 r^3 + 54p^2 r^6 + 12 pr^9 + r^12 is the expansion of which binomial?

Question

A: (3p+r^3)^4

The fifth term in the expansion of (3x^2-sqrt(y))^6 is _______.

A: 135x^4y^2

Answer 1

Both correct!