Complex Expressions

Simplify the expression: (11 - 7i) + (2 - 5i).

• 13 - 12i

• 9 - 2i

• 13 - 2i

• None of these

Simplify the expression: (-6 + 10i) - (1 - 2i).

• -7 + 12i

• -5 + 12i

• -7 + 8i

• -5 + 8i

• None of these

Simplify the expression -5i(-2 - i).

• 10 + 5i

• 10 - 5i

• -5 + 10i

• 5 + 10i

• None of these

Simplify the expression (7 + i)(4 + 3i)

• 28 + 21i

• 25 - 25i

• 25 + 25i

• 28 + 21i

• None of these

Simplify the expressions below.

(-3 - 8i)(1 - 2i)

• -19 + 14i

• 13 - 2i

• -19 - 2i

• 13 + 14i

• None of these

Simplify the expression (3 + 5i)(3 - 5i) and name all sets to which the value belongs.

• -16

• 9 - 25i

• 34

• 9

• None of these

• 31 + 31i

• 31 - 31i

• -31 + 31i

• -31 - 31i

• None of these