Complex Numbers Review

Simplify the expression (3 + 2i) + (4 - 5i).

• 7 - 3i

• 3 + 7i

• 7 + 3i

• -1 - 3i

Perform the multiplication (2 + 3i)(4 - 5i).

• 23 + 2i

• 9 + 8i

• 12 - 15i

• -7 + 20i

Simplify the expression (5 - 2i) - (3 + 4i).

• 2-6i

• 8 - 6i

• 6i +2

• -2 - 6i

Simplify the expression (2 + i)(2 + i)

• 3 + 4i

• 3 + 3i

• 2 + 2i

• 4 + 4i

Perform the multiplication (3 + 4i)(3 - 4i).

• -7

• 12i

• 25

• 49i