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Simplifying Negative Square Roots
Adding/Subtracting Complex Numbers
Multiplying Complex Numbers
Quadratic Formula and Complex Numbers
Dividing Complex Numbers
100

√-16

4i

100

(3 + 2i) + (8 + 4i) 

11 + 6i

100

4(7 + 3i)

28 + 12i

100

y = x2 + 12x - 3


-6+√39, -6-√39

100

7/-i

7i

200

√-75

5i√3

200

(3 + 9i) - (2 + 8i) 

1 + i 

200

(2 + 2i)2

8i

200

y = 3x2 -7x + 6


(7/6 + i(√23)/6, 7/6 - i(√23)/6)

200

(3-6i)/(3i)

-2-i

300

-4√-45

-12i√5

300

(-11 + 5i) - (-21 - 15i)

10 + 20i 

300

(3 - 2i) (4 + 6i)

24 + 10i

300

y = -x2 - 6x -12

-3 + i√3, -3 - i√3

300

10/(3-i)

3+i

400

√-128

-8i√2

400

(51i - 71 - 11i) + (31 -20i)

-40 + 20i

400
(11 + 9i) (-13 - 8i)

-71 - 205i

400

3x -3 = 2x2 

3/4 + i √(15)/4, 3/4 - i √(15)/4

400

(10-10i)/(4+2i)

1-3i

500

i√-225

-15

500

(123 + 456i) + (789 - 123i)

912+333i

500

(√7 - 2i) (3√7 + 12i)

45 + 6i√7

500

5x2 + 5 = 5x


1/2 + i (√(3))/(2), 1/2 - i (√(3))/(2)

500

(-10+5i)/(-2i-1)

-5i