Solving Quadratics by Square Roots

Solve using square roots.

• A
• B
• C
• D

Tags

CCSS.HSA.REI.A.2

CCSS.HSA.REI.B.4

Solve using square roots.

• A
• B
• C
• D

Tags

CCSS.8.EE.A.2

Solve using square roots.

• A
• B
• C
• D

Tags

CCSS.HSA.REI.A.2

CCSS.HSA.REI.B.4

Solve.

k² - 6 = 43

• k = √37

• k = ±37

• k =±7

• No Real Number Solution

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.4

Solve.

5b² - 4 = 41

• b = ±9

• b = ±3

• b = ±8

• No Real Number Solution

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.4

Solve.

4m² - 100 = 0

• m= ±25

• m=96

• m= ±5

• No Real Number Solution

Tags

CCSS.HSA-REI.B.4B

Solve.

3x² = -60

• No Real Number Solution

• x= √20

• x= √60

• x= ±√30

Tags

CCSS.HSA.REI.B.4

Is this possible?

x²= -4

• No, because when you square a number (multiply a number by itself) it'll always be positive. 2 x 2 = 4, -2 x -2 = 4

• Yes, because a negative times a negative is negative -2 x -2 = -4

What are the x- intercepts? (The x-intercepts).

• x= 0 and x= -4

• x= 0 and x= 4

• y= 0

• x= 2

• ± 1/4
• ± 9/36
• ± 1/2
• No real solution

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4