What is sqrt(-5)sqrt(-15) ?

The solution to sqrt(-5)sqrt(-15) is -5sqrt(3)

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simplify sqrt(-5)sqrt(-15)

simplify

- 5 - 15

- 53

Decimal Notation

- 8.66025 \dots

Solution steps

- 5 - 15

- 5 = 5 i

= 5 i - 15

- 15 = 15 i

= 5 i 15 i

Apply exponent rule:

aa = a^{2}

ii = i^{2}

= 5 i^{2} 15

= 515 i^{2}

15 = 53

= 553 i^{2}

Apply radical rule:

a a = a, a \geq 0

55 = 5

= 53 i^{2}

Apply imaginary number rule:

i^{2} = - 1

= 53 (- 1)

Multiply the numbers:

5 (- 1) = - 5

= - 53

\frac{1469}{1000}

\frac{7}{4} - \frac{1}{3}

66 \frac{2}{3} \div 40

\frac{3}{5 x + 2} + \frac{5 x}{25 x ^{2} - 4}