Completing the Square and Quadratic Formula

Mathematical Equivalence

ON

Tags

CCSS.HSA-REI.B.4B

Mathematical Equivalence

ON

Tags

CCSS.HSA.APR.C.4

Mathematical Equivalence

ON

Tags

CCSS.HSA-REI.B.4B

What is the discriminant?

• b²-4ac
• b²/2a
• 4ac
• b²±4ac

Tags

CCSS.HSA-REI.B.4B

Solve    2x² + 7x - 15 = 0

• No Solution

Tags

CCSS.HSA-REI.B.4B

Solve     4x² + 12x + 11 = 0

• -2.2 or -0.8
• -2 or -1
• 2 or 1
• No Solution

Tags

CCSS.HSA-REI.B.4B

Use the quadratic formula to find the solutions for
y = x² - 8x + 4

Tags

CCSS.HSA-REI.B.4B

Solve by factoring: x² - 9x + 20 = 0

• x = -4 and x = -5
• x = 20 and x = -9
• x = 4 and x = 5
• x = -4 and x = 5

Tags

CCSS.HSA-REI.B.4B

Factor: 49x² - 100

• (49x + 100)(x - 1)
• (7x - 10)(7x + 10)
• (49x - 10)(x + 10)
• (7x -10)(7x - 10)

Tags

CCSS.HSA.APR.C.4

Solve for x:

x² - 2x - 1 = 0

Tags

CCSS.HSA-REI.B.4B