Solving Quadratics by Square Root and Zero Product Property

Solve by taking square roots

k² - 6 = 43

• k = ±√37

• k =7

• k =±7

• No Solution

Tags

CCSS.HSA-REI.B.4B

Solve.

5b² - 4 = 41

• b = ±9

• b = ±3

• b = 3

• b = 9

Tags

CCSS.8.EE.A.2

Solve.

x² - 5 = 76

• x = 9

• x = ±√71

• x = ±9

• No Solution

Tags

CCSS.8.EE.A.2

Solve.

3x² = -60

• No Solution

• x= √20

• x=20

• x= ±√20

Tags

CCSS.8.EE.A.2

Solve by taking the square root:  9k² = 225

• 4
• 4, -4
• 25, -25
• -5, 5

Tags

CCSS.HSA-REI.B.4B

Solve.

9x² = 16

• x = ±4/3

• x= 4/3

• x= -4/3

• No Solution

Tags

CCSS.8.EE.A.2

Solve using the zero-product property

(x +3)(x - 4) = 0

• x=3 and 4

• x= -3 and 4

• x= -3 and -4

• x=3 and -4

Tags

CCSS.HSA-REI.B.4B

Solve using the zero-product property

-2x(x+8)=0

• x=0 and -8

• x= -2 and -8

• x= -2 and 8

• x=0 and 8

Tags

CCSS.HSA-REI.B.4B

Solve using the zero-product property

(x - 2)(3x + 1) = 0

• x=2 and 3

• x= -2 and 1/3

• x= 2 and -3

• x=2 and -1/3

Tags

CCSS.HSA-REI.B.4B

Solve by factoring

x² - 2x - 48=0

• x = 8, x = 6

• x = 8, x = -6

• x = -8, x = 6

• x=-8, x=-6

Tags

CCSS.HSA-REI.B.4B