Quadratic Formula and Discriminant

Front

What is this formula?

Back

This is the quadratic formula.

Tags

CCSS.HSA-REI.B.4B

Front

What should you do first in solving this equation?
x² + 6x - 13 = 3

Back

Make it equal 0 by subtracting 3 on each side

Tags

CCSS.HSA-REI.B.4B

Front

Solve Using the Quadratic Formula
 x² + 4x - 40 = -8

Back

-8 & 4

Tags

CCSS.HSA-REI.B.4B

Front

Solve using the Quadratic Formula:
x² + 4x + 3 = 0

Back

x = -1 and x = -3

Tags

CCSS.HSA-REI.B.4B

Front

Solve using the quadratic formula.
2x² - 9x - 35 = 0

Back

x = -5/2, x = 7

Tags

CCSS.HSA-REI.B.4B

Front

2x²-x -3=0

Back

x= 3/2, x= -1

Tags

CCSS.HSA-REI.B.4B

Front

Solve    2x² + 7x - 15 = 0

Back

-5 or 1.5

Tags

CCSS.HSA-REI.B.4B

Front

Back

Tags

CCSS.HSA-REI.B.4B

Front

The discriminant is

Back

b² - 4ac

Tags

CCSS.HSA-REI.B.4B

Front

If the discriminant equals 0, then the quadratic has:

Back

1 Rational Solution

Tags

CCSS.HSA-REI.B.4B