Simplifying Imaginary Numbers and Adding/Subtracting Complex Numbers

What is the simplified form of (-9 + 5i) + (3 -2i)

• -12 + 31i

• -6 + 3i

• -11 + 7i

• 5 - 3i

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

• 8 - 19i

• 8 + 5i

• 13- 19i

• 14 -19i

What is the simplified form of (-6i)(3i)

• -18

• -18i

• 18

• -18i²

What is the simplified form of (-3 + 2i)(1- 4i)

• -2 - 2i

• 5 + 14i

• -11 -10i

• -3 -8i

What is the simplified form of (8 -3i)²?

• 73

• 16 - 6i

• 55 + 48i

• 55 - 48i

What is the simplified form of the above?

• 7/10 + 11/10 i

• 13/10 +1/10 i

• 5/4 - 3/2i

• 7/10 - 11/10 i

3i(4 - i)

• 9i

• -3 +12i

• 12 - 3i

• 3 + 12i

Simplify (11 + 5i)(11 - 5i)

• 121 -110i

• 121 + 110i

• 146

• 121 - 25i²

Simplify i³⁷

• 1

• i

• -i

• -1

Simplify i²⁴

• i

• 1

• -1

• -i