Adding and Subtracting Imaginary and Complex Numbers

Another way to express √-1 is?

• 1

• -1

• i

• 0

Simplify

(12 - 4i) + (-2 + 8i)

• 8 + 104i

• 10 + 4i

• 14 - 4i

• 10 - 12i

√(-300)

• 10i√3

• 15√15

• -10√3

• 2i√13

A complex number can be expressed as a + bi. What does a represent?

• the real part of the complex number

• the imaginary part of the complex number

• depends on the sign of the number

• the square root of the complex number

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