Question

. What is the product of 3 and 6√20 in simplest radical form? A.)18√20B.)18√60C.)36√5D.)36√20

Answer 1

3 × 6√20 = 18√20. Simplify √20 = √(4·5) = 2√5, so 18√20 = 18·2√5 = 36√5. Answer: C.