What is 2sqrt(8)*sqrt(20) ?

The solution to 2sqrt(8)*sqrt(20) is 8sqrt(10)

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simplify 2sqrt(8)*sqrt(20)

simplify

28 \cdot 20

810

Decimal Notation

25.29822 \dots

Solution steps

2820

8 = 22

= 2 \cdot 2220

20 = 25

= 2 \cdot 22 \cdot 25

Apply radical rule:

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

25 = 2 \cdot 5

= 2 \cdot 2 2 \cdot 5 \cdot 2

Multiply the numbers:

2 \cdot 5 = 10

= 2 \cdot 210 \cdot 2

Multiply the numbers:

2 \cdot 2 \cdot 2 = 8

= 810

3 ∣ x + 9 ∣ - 8 \leq - 2

v - 17.6 = - 2.3

4 x^{2} - 8 x + 4 = 0

\frac{3}{x ^{2} - 1} + 1 > \frac{2}{x - 1}

6 - 3 + 4 x + 1 = 5 x + 7