Complex Numbers

Square roots

100

The square root of -25

5i

200

The square root of -15

i square root of 15

300

The square root of -44

2i square root of 11

400

The square root of -252

6i square root of 7

500

The square root of -324

18i

A+bi

100

(-11+3i)+(9+2i)

-2+5i

200

(4+i)+(7-5i)

11-4i

300

(7-2i)-(2+6i)

5-8i

400

6i-(14-i)+(5-3i)

-9+4i

500

2(8-3i)

6+16i

Simplify I

100

1¹⁹

-i

200

i²⁸

1

300

i⁴²

-1

400

i⁵

i

500

i¹⁰

-1

Vocab

100

Complex numbers

A+bi where A and B are real numbers

200

Imaginary unit 

a number that is expressed in terms of the square root of a negative number

300

Absolute Value

the magnitude of a real number without regard to its sign

400

Algebra

the part of mathematics in which letters and other general symbols are used to represent numbers and quantities in formulae and equations.

500

Quadratic Formula

x= -b +/- square root b^2 - 4ac under 2

Multiplying Complex numbers

100

2i(4)

8i

200

(1+3i)(2+i)

-1+7i

300

4i(-1+5i)

-20-4i

400

(1+4i)(3-6i)

27+6i