Quadratics

Factoring: Level 1

Factoring: Level 2

Rationalizing the Denominator

Trivia

Discriminant

100

Solve by factoring

5s(s-3) = 0

s=0 or s=3

100

Solve the quadratic by factoring:

x² + 9x + 20 = 0

x = -4, x = -5

100

1/(sqrt5

sqrt5/5

100

What city is Mr. Timm from?

New Orleans

100

Discriminants like this indicate two real solutions

Discriminant greater than 0

200

42x² - 7x = 0

7x(6x - 1) = 0

7x = 0 or 6x - 1= 0

x=0 6x = 1

x= 1/6

200

Solve this quadratics by factoring.

x² + 2x - 3 = 0

(x-1)(x+3) = 0

x = 1 or x = - 3

200

2/sqrt(3)

(2sqrt(3))/3

200

How do you say 92 in French?

Quatre-Vignt Douze

200

Find the Discriminant

8r² - 8r - 9 = 0

352

300

Solve this quadratic equation by factoring

x² -64 = 0

x² - 64 = 0

(x +8)(x - 8)=0

x+8=0 or x - 8 = 0

x=8 or x= -8

300

Solve the quadratic by factoring:

4x² + 8x + 3 = 0

(2x + 3)(2x + 1) = 0

x = -1/2, x = -3/2

300

10/sqrt(5)

2sqrt5

300

What is the slope ratio for ADA compliant wheelcahir ramps?

1 : 12

300

Discriminants like this indicate 1 real solution

Discriminant = 0

400

Solve the quadratic by factoring:

x² - 2x - 15 = 0

(x - 5)(x + 3) = 0

x = 5, x = -3

400

Solve this quadratics equation by factoring.

6x² - x - 2 = 0

6x² - 4x + 3x - 2 = 0

(3x - 2)(2x + 1)= 0

x = 2/3 or x -1/2

400

(4sqrt(12))/(3sqrt(3))

8/3

400

What single-syllable number has the highest value?

400

Find the discriminant

2y² + 4y + 2 = 0

500

Factor to solve

2x² -19x - 10 = 0

2x² - 19x -10 =0

(2x + 1)(x - 10) = 0

2x+1 = 0 or x - 10 = 0

2x= -1. x= 10

x= -1/2

500

Solve the quadratic:

6x² - 7x - 20 = 0

6x² - 15x + 8x - 20 = 0

(2x - 5)(3x + 4) = 0

x = 5/2 or x = -4/3

500

(5sqrt2)/(2sqrt(15)

sqrt30/6

500

What is the highest number that doesn't contain an "N" if it were spelled out in English?

88 (Eighty-eight)

500

Discriminants like this indicate no real solutions and two imaginary solutions.

Discriminant less than 0

Negative Discriminant