Operation on Imaginary Numbers

Simplify:
(4 + 7i) - (3 + 2i)

• 1 + 5i

• 7 + 9i

• 1 + 9i

• -1 + 5i

Simplify:
2i(4 - 3i)

• 6 + 8i

• 6 - 8i

• 8i - 6i²

• 8i + 6i²

Simplify:
-3i(4 + 2i)

• 6 - 12i

• 6 + 12i

• -12i - 6i²

• -12i + 6i²

(3i)(-2+4i)

• -6+12i

• -12-6i

• -2+7i

• 12+6i

Multiply: 
(4 – 3i)(-7 – 2i)

•   -23 + 13i

•   -23 - 29i

•   -34 + 13i

•   -34 - 29i

Simplify √-4

• 2i

• -2i

• 2

• 4i

Simplify √-23

• -√23

• 23i

• 23

• i√23

Simplify √-1

• 1

• -i

• -1

• i

• 1

• -1

• i

• -i

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

• -2+6i

• 12+6i

• -35-16i²

• -35 -16i