What is sqrt(5)*sqrt(21) ?

The solution to sqrt(5)*sqrt(21) is square root of 105

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simplify sqrt(5)*sqrt(21)

simplify

5 \cdot 21

105

Decimal

10.24695 \dots

Solution steps

521

Apply radical rule:

a b = ab, a \geq 0, b \geq 0

521 = 5 \cdot 21

= 5 \cdot 21

Multiply the numbers:

5 \cdot 21 = 105

= 105

- 6 (7 k + 11)

(2 x + 7) (x - 1)

3 x^{3} - 2 x^{2} - 6 x + 4

5 + (- 10)

x (7 x + 4) (x - 3)

What is sqrt(5)*sqrt(21) ?
The solution to sqrt(5)*sqrt(21) is square root of 105