What is simplify-sqrt(81)+sqrt(-4)-sqrt(9)-sqrt(-64) ?

The solution to simplify-sqrt(81)+sqrt(-4)-sqrt(9)-sqrt(-64) is -12-6i

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simplify-sqrt(81)+sqrt(-4)-sqrt(9)-sqrt(-64)

simplify

- 81 + - 4 - 9 - - 64

- 12 - 6 i

Solution steps

- 81 + - 4 - 9 - - 64

- 81 = - 9

- 4 = 2 i

9 = 3

- 64 = 8 i

= - 9 + 2 i - 3 - 8 i

Group like terms

= 2 i - 8 i - 9 - 3

Add similar elements:

2 i - 8 i = - 6 i

= - 6 i - 9 - 3

Subtract the numbers:

- 9 - 3 = - 12

= - 6 i - 12

Rewrite in standard complex form:

- 12 - 6 i

= - 12 - 6 i

0 - \frac{3}{2}

5 \times 7

412 \cdot 47

a^{3} - b^{3}

What is simplify-sqrt(81)+sqrt(-4)-sqrt(9)-sqrt(-64) ?
The solution to simplify-sqrt(81)+sqrt(-4)-sqrt(9)-sqrt(-64) is -12-6i