Solving Quadratics with Formula

Solve x² - 5x + 10 = 0

• (5 - i√15)/2  ,  (5 + i√15)/2

• (5 - √15)/2  ,  (5 + √15)/2

• (5 - i√65)/2  ,  (5 + i√65)/2

• (5 - √65)/2  ,  (5 + √65)/2

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

What is this formula?

• This is the speed of light formula.

• This is the quadratic formula.

• This is the zero product property.

• This is scary.

Tags

CCSS.HSA-REI.B.4B

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

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

• -10 & -4

• -4 & 10

• -8 & 4

• 8 & -4

Tags

CCSS.HSA-REI.B.4B

Fill in the formula =​ = ​ = ​

• -6

• 1

• -40

• -1

• 6

• 40

Tags

CCSS.HSA-REI.B.4B

g

h

i

2

5

61

28

-3

53

-1

-7

33

-5

Tags

CCSS.HSA-REI.B.4B

Fill in quadratic formula

j

h

d

a^2

-b

4ac-b^2

b^2+4ac

-b^2-4ac

b

b^2-4ac

2a

b^2

-2a

Tags

CCSS.HSA-REI.B.4B

• -6

• 1

• -40

• -1

• 6

• 40

Tags

CCSS.HSA-REI.B.4B

Fill in the formula x^2-6x-40=0 ​ BLUE=​ (a)   RED= ​ (b)   GREEN= ​ (c)  

• -6

• 1

• -40

• -1

• 6

• 40

Tags

CCSS.HSA-REI.B.4B

j

h

d

-b

4ac-b^2

b^2+4ac

-2a

a^2

b²-4ac

b^2

b

2a

-b^2-4ac

Tags

CCSS.MATH.CONTENT.HSN.CN.C.7

CCSS.MATH.CONTENT.HSA.SSE.A.1.b