How do you evaluate $(5- 6i ) + ( 4- i )$ ?

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Answer 1 · 2017-09-15T04:29:51

$9 - 7i$

For this specific example, you can visually remove the parentheses and simplify. Combine the numbers without i, and then combine the numbers with i.

$(5-6i) + (4-i)$

$5 - 6i + 4 - i$

$9 - 7i$

How do you evaluate (5- 6i ) + ( 4- i )(5- 6i ) + ( 4- i )?