What is sqrt(-2)*sqrt(-5) ?

The solution to sqrt(-2)*sqrt(-5) is -sqrt(10)

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simplify sqrt(-2)*sqrt(-5)

simplify

- 2 \cdot - 5

- 10

Decimal Notation

- 3.16227 \dots

Solution steps

- 2 - 5

- 2 = 2 i

= 2 i - 5

- 5 = 5 i

= 2 i 5 i

Apply exponent rule:

aa = a^{2}

ii = i^{2}

= 2 i^{2} 5

= 25 i^{2}

25 = 10

= 10 i^{2}

Apply imaginary number rule:

i^{2} = - 1

= 10 (- 1)

Apply rule:

a (- b) = - ab

10 (- 1) = - 10 \cdot 1

= - 10 \cdot 1

Apply rule:

a \cdot 1 = a

= - 10

\frac{x ^{2} + x - 30}{x ^{2} - 3 x - 54}

25 x^{2} y^{2}

2 (4 f + 2 g)

\frac{- 2 ( x ^{- 2} ) ^{4}}{- 2 x ^{- 10}}

10 lo g_{10} (1)