Question

How do you simplify `6sqrt(5y) - sqrt(20y)`?

Answer 1

`6sqrt(5y)-sqrt(20y)=4sqrt(5y)`

Explanation:

`6sqrt(5y)-sqrt(20y)`

= `6sqrt(5y)-sqrt(2×2×5×y)`

= `6sqrt(5y)-2sqrt(5y)`

= `4sqrt(5y)`