What is sqrt(-2)*sqrt(-10) ?

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

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simplify sqrt(-2)*sqrt(-10)

simplify

- 2 \cdot - 10

- 25

Decimal Notation

- 4.47213 \dots

Solution steps

- 2 - 10

- 2 = 2 i

= 2 i - 10

- 10 = 10 i

= 2 i 10 i

Apply exponent rule:

aa = a^{2}

ii = i^{2}

= 2 i^{2} 10

= 210 i^{2}

10 = 25

= 225 i^{2}

Apply radical rule:

a a = a, a \geq 0

22 = 2

= 25 i^{2}

Apply imaginary number rule:

i^{2} = - 1

= 25 (- 1)

Multiply the numbers:

2 (- 1) = - 2

= - 25

\frac{16}{90}

4 (x + 3) - 4 (5 x - 2)

(x y - 1)^{2}

8^{l o g_{2} (3)}

\frac{27 x y ^{7}}{x ^{8} y ^{2}}