en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

simplify sqrt(7)*sqrt(21)

Solution

simplify

7 \cdot 21

Solution

73

+1

Decimal Notation

12.12435 \dots

Solution steps

721

21 = 73

= 773

Apply radical rule:

a a = a, a \geq 0

77 = 7

= 73

Popular Examples

12 m^{2} + 11 m = 15

4 - 2 x + 6 = 10 - 9 x + 7

(s^2+6s+8)(2s-4)-(s^2-4s+20)(2s+6)=0

(s^{2} + 6 s + 8) (2 s - 4) - (s^{2} - 4 s + 20) (2 s + 6) = 0

-3| w/2+4|-1=-4

- 3 \frac{w}{2} + 4 - 1 = - 4

simplify 1/(sqrt(1/4))simplify

\frac{1}{\frac{1}{4}}

Frequently Asked Questions (FAQ)

What is sqrt(7)*sqrt(21) ?
The solution to sqrt(7)*sqrt(21) is 7sqrt(3)