What is sqrt(-2)*sqrt(-18) ?

The solution to sqrt(-2)*sqrt(-18) is -6

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simplify sqrt(-2)*sqrt(-18)

simplify

- 2 \cdot - 18

- 6

Solution steps

- 2 - 18

- 2 = 2 i

= 2 i - 18

- 18 = 2 \cdot 3 i

= 2 i 2 \cdot 3 i

Apply radical rule:

a a = a, a \geq 0

22 = 2

= 2 i 3 i

Apply exponent rule:

aa = a^{2}

ii = i^{2}

= 2 i^{2} \cdot 3

= 2 \cdot 3 i^{2}

Multiply the numbers:

2 \cdot 3 = 6

= 6 i^{2}

Apply imaginary number rule:

i^{2} = - 1

= 6 (- 1)

Multiply the numbers:

6 (- 1) = - 6

= - 6

x^{2} x

\frac{2}{3} - \frac{1}{3}

u^{2} - 3 u - 28

t^{2} - \frac{2}{7} t + \frac{1}{49}

\frac{8 ! 5 !}{9 ! 2 !}