Solving Quadratics by Taking Square Root

When do you use the plus or minus symbol?
±

• After taking the square root of both sides

• After adding the square to both sides

• After taking half of b

• After setting the equation equal to zero

Tags

CCSS.HSA-REI.B.4B

Solve using square roots.

• A

• B

• C

• D

Tags

CCSS.HSA-REI.B.4B

• ±23.25
• ±5
• ±25
• No real solution

Tags

CCSS.8.EE.A.2

• {12,-12}

• No Solution

• {16,-16}

• {34.06,-34.06}

Tags

CCSS.8.EE.A.2

• {10,-10}

• No Solution

• {10.12,-10.12}

• {100}

Tags

CCSS.8.EE.A.2

Solve using square roots.

• A 

• B 

• C 

• D 

Tags

CCSS.HSA-REI.B.4B

• A
• B
• C
• D

Tags

CCSS.8.EE.A.2

• {25,-25}

• No Solution

• {22.36,-22.36}

• {7,-7}

Tags

CCSS.8.EE.A.2

• No Solution

• {2.24,-2.24}

• {6,-6}

• {6.16,-6.16}

Tags

CCSS.8.EE.A.2

• x = -81, 81

• x = 3, -3

• x = 9, -9

• x = No Solution

Tags

CCSS.8.EE.A.2