What is (9sqrt(-81))(-10sqrt(64)) ?

The solution to (9sqrt(-81))(-10sqrt(64)) is -6480i

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simplify (9sqrt(-81))(-10sqrt(64))

simplify

(9 - 81) (- 1064)

- 6480 i

Solution steps

(9 - 81) (- 1064)

Apply rule:

a (- b) = - ab

(9 - 81) (- 1064) = - 9 - 81 \cdot 1064

= - 9 - 81 \cdot 1064

64 = 8

= - 9 - 81 \cdot 10 \cdot 8

Multiply the numbers:

- 9 \cdot 10 \cdot 8 = - 720

= - 720 - 81

Apply radical rule:

- a = a - 1

- 81 = 81 - 1

= - 72081 - 1

Apply imaginary number rule:

- 1 = i

= - 72081 i

81 = 9

= - 720 \cdot 9 i

Multiply the numbers:

- 720 \cdot 9 = - 6480

= - 6480 i

- 6 + (- 12)

\frac{3 u ^{4} v ^{4} - 2 u ^{5} v ^{2} + ( u ^{2} v ^{2} ) ^{2}}{u ^{3} v ^{2}}

\frac{x ^{2} - x - 2}{x + 1}

\frac{9 ^{5}}{9 ^{3}}

(5 + 36)^{2}

What is (9sqrt(-81))(-10sqrt(64)) ?
The solution to (9sqrt(-81))(-10sqrt(64)) is -6480i