Unit 4 Part 1 Review Jeopardy

Operations w/ Complex Numbers

100

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

1

200

10i(2+7i)

-70+20i

300

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

30-30i

400

frac{7+9i}{-4i}

frac{7i-9}{4}

500

frac{9-5i}{-8-9i}

frac{-27+121i}{145}

Powers of i

100

i^24

1

200

i^14

-1

300

i^67

-i

400

i^234

-1

500

i^599

-i

Quadratics

100

x^2-10x+16=0

x=2, 8

200

16x^2+3=19

x=+-1

300

4x^2-2=-30

x=+-isqrt7

400

3x^2+5x-50=0

x=frac{10}{3}, -5

500

7m^2+2m+11=0

x=frac{-1+-2isqrt19}{7}

Discriminants

100

-6n^2+9n-10=0

-159; two complex solutions

200

6x^2+9x=0

81; two real solutions

300

x^2-6x+9

0; one real solution

400

-3b^2-8b-6=0

-8; two complex solutions

500

2x^2+4x+2=0

0; one real solution