Quadratic Formula Factoring

Solve Using the Quadratic Formula 
2x² + 7x - 15 = 0

• -1.5 or 5

• No Solution

• -5 or 1.5

• 0.7 or 5

Tags

CCSS.HSA-REI.B.4B

When using the Quadratic formula you have to identify a, b, and c. Which answer does this correctly?

• a = 6, b = 1, c = 1

• a = -6, b = -1, c = 1

• a = -1, b = 6, c = 1

• a = 1, b = -1, c = -6

Tags

CCSS.HSA-REI.B.4B

Solve :
m² - 2m -15=0

• m=-2 or 8

• m=-5 or 3

• m=-3 or 5

• m = 5 or 3

Tags

CCSS.HSA-REI.B.4B

Factorizing 2x² + 3x +1

• (2x+1)(x+1)

• (x+1)(x+2)

• (2x+2)(x+1)

• 2(x+1)(x+1)

Solve by factoring and using null factor law (aka, zero product property):

a² + 2a - 24 = 0

• a = -6, 4

• a = 6, -4

• a = 12, -2

• a = 8, -3

Tags

CCSS.HSA-REI.B.4B

What do you do if you can NOT factor an equation

• Use Quadratic Formula

• Factor

• Leave it

• Give Up

Tags

CCSS.HSA-REI.B.4B

Use the quadratic formula to solve 2x² + 2x - 12?

• -2, 3

• 2, 3

• 2, -3

• -2, -3

Factor
9x²+9x-10

• (3x-5)(3x+2)

• (3x+5)(3x-2)

• (3x+5)(3x+2)

• Not Factorable

Factor
4n²-17n-15

• (n-10)(6n+1)

• (4n-5)(n-3)

• (n-5)(4n-3)

• (n-5)(4n+3)

What are the factors of 3x²-17x+10

• (x-5)(3x-2)

• (x+5)(3x+2)

• (3x-5)(x-2)

• (x+5)(3x-2)