Imaginary Numbers Practice

(4+7i)+(8-2i)=

• 34i

• 28+6i

• 12+5i

• -4+9i

(3-2i)-(4-2i)=

• -1+0i

• 7-4i

• 1-2i

• -i

(-9-5i)-(2-7i)

• -40+14i

• -7-12i

• -59i

• -11+2i

(2-i)(3+i)

• 5-i

• 7

• 7-i

(4+i)(5+i)

• 20+i

• 19+9i

• 9i

(5-3i)(2-5i)

• 25-31i

• -5-31i

• -15-10i

• -25i

Choose ALL that apply:

46i

• Complex

• real

• pure imaginary

• not a number

Write in simplest radical form: √-28

• -2√7

• -2i√7

• 2i√7

• 28i

• -√26

• 26i

• -26i

• i√26

• 3i√5

• -3i√5

• -i√45

• 45i