Operations With Complex Numbers and U Substitution

What is the simplifies form of (11 - 7i) - (-3 + 12i)

• 8 - 19i

• 8 + 5i

• 13- 19i

• 14 -19i

Multiply
3i(-2 + 4i)

• -6+12i

• -12-6i

• -2+7i

• 12+6i

• A
• B
• C
• D

• 1

• -i

• i

• -1

• i

• -i

• -1

• 1

• A
• B
• C
• D

• A
• B
• C
• D

(5 - 2i) + (-7 + 8i)

• -2+6i

• 12+6i

• -35-16i²

• -35 -16i

i(2+5i)

• -5+2i

• 5-2i

• 7i

• 2i+5i

The product of (3 -2i) and (7+6i) is

• 21 - 12i

• 9 + 4i

• 33 + 4i

• 21 + 16i