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

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

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simplify sqrt(-15)*sqrt(-5)

simplify

- 15 \cdot - 5

- 53

Solution steps

- 15 - 5

- 15 = 15 i

= 15 i - 5

- 5 = 5 i

= 15 i 5 i

Apply exponent rule:

aa = a^{2}

ii = i^{2}

= 15 i^{2} 5

= 155 i^{2}

15 = 53

= 535 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{3 t ^{6} u ^{2} v ^{5}}{9 t u v ^{21}})^{0}

4^{- x}

4 x^{2} + 25 = 0

\frac{81}{4}

- \frac{1}{5} x - 5 < 11