Simplify (5+4i)-(-1-2i)

$(5 + 4 i) - (- 1 - 2 i)$

Step 1

Simplify each term.

Apply the distributive property.

$5 + 4 i - - 1 - (- 2 i)$

Multiply $- 1$ by $- 1$ .

$5 + 4 i + 1 - (- 2 i)$

Multiply $- 2$ by $- 1$ .

$5 + 4 i + 1 + 2 i$

$5 + 4 i + 1 + 2 i$

Step 2

Simplify by adding terms.

Add $5$ and $1$ .

$6 + 4 i + 2 i$

Add $4 i$ and $2 i$ .

$6 + 6 i$

$6 + 6 i$

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