How do you simplify $sqrt(20)*sqrt(5)$ ?

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Answer 1 · 2015-12-20T17:28:14

10

Write as : $sqrt(4xx5)xxsqrt(5)$

Giving: $sqrt(4)xxsqrt(5)xxsqrt(5)$

$=> 2xx5 = 10$

Answer 2 · 2015-12-20T17:53:45

$10$

$sqrtaxxsqrtb=sqrt(ab)$

(when $a,b>=0)$

Thus,

$sqrt20xxsqrt5=sqrt(20xx5)=sqrt100=10$

How do you simplify sqrt(20)*sqrt(5)sqrt(20)*sqrt(5)?