Quadratic Formula

Identifying coeffients

100

Identify the A, B, and C

1x² + 5x + 4

A = 1 B = 5 C = 4

200

Identify A, B, and C

-4x² +7x - 9

A = -4 B = 7 C = 9

300

Identify the A, B, and C

1/2x² - 3/4x + 6

A = 1/2 B = -3/4 C = 6

400

Identify the A, B and C

38 + 4x + 7x²

A = 7 B = 4 C = 38

500

Identify the A, B, and C

2(x - 3)² - 5

A = -6 B = 2 C = -5

Practice Problems

100

X² = 16

X = 4 and X = -4

200

2X² = 50

X = 5 and X = -5

300

3x² - 12 = 0

X = 2 and X = -2

400

4x² + 8x + 3 = 0

X = 0.5 and X = -1.5

500

5x² - 20x + 15 = 0

X = 3 and X = 1