Question

What is 5 square root28 plus square root 63 in simplest radical form

Answer 1

13√7

Explanation:

`5√(28) +√(63) =5√(2^2\cdot 7)+√(3^2\cdot 7)\\\\=5\cdot 2√(7)+3√(7)=(10+3)√(7)\\\\=\boxed{13√(7)}`