What is simplify-sqrt(81)+sqrt(-128)+sqrt(4)-sqrt(-162) ?

The solution to simplify-sqrt(81)+sqrt(-128)+sqrt(4)-sqrt(-162) is -7-sqrt(2)i

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simplify-sqrt(81)+sqrt(-128)+sqrt(4)-sqrt(-162)

simplify

- 81 + - 128 + 4 - - 162

- 7 - 2 i

Solution steps

- 81 + - 128 + 4 - - 162

- 81 = - 9

- 128 = 82 i

4 = 2

- 162 = 2 \cdot 9 i

= - 9 + 82 i + 2 - 2 \cdot 9 i

Group like terms

= 82 i - 2 \cdot 9 i - 9 + 2

Add similar elements:

82 i - 2 \cdot 9 i = - 2 i

= - 2 i - 9 + 2

Add the numbers:

- 9 + 2 = - 7

= - 2 i - 7

Rewrite in standard complex form:

- 7 - 2 i

= - 7 - 2 i

\frac{25}{5}

(x^{2} + y^{2})^{4}

(x + 1) (x + 3)

\frac{169}{25}

lo g_{4} (12 \cdot 3)

What is simplify-sqrt(81)+sqrt(-128)+sqrt(4)-sqrt(-162) ?
The solution to simplify-sqrt(81)+sqrt(-128)+sqrt(4)-sqrt(-162) is -7-sqrt(2)i