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

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Answer 1 · 2016-09-02T20:40:06

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

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

= $6sqrt(5y)-sqrt(2×2×5×y)$

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

= $4sqrt(5y)$

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