Solve Quadratic Using Square Root

Solve: 3x² = -12

• x = -4, 4

• x = 2, -2

• x = 2i, -2i

• x = 4i, -4i

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve: 2(w + 1)² = 72

• w = 6, -6

• w = 5, -7

• w = 5, -5

• w = 5

Tags

CCSS.HSA-REI.B.4B

Solve: 2x²= 30

• x= √5

• x= √30

• x= √15

• x= ±5

Tags

CCSS.8.EE.A.2

What are the solutions to 2(x−7)² = 32 ?

• 7±√32

• ±√65

• 3 and 11

• -1 and 15

Tags

CCSS.HSA-REI.B.4B

Solve by taking square roots:

k² - 6 = -50

• k = ±4i√11

• k = ±4√11

• k = ±2i√11

• k = ±2√11

Tags

CCSS.HSA-REI.B.4B

Solve by taking square roots:

-3b² - 4 = 26

• k = ±2i√30

• k = ±i√30

• k = ±2i√10

• k = ±i√10

Tags

CCSS.HSA-REI.B.4B

Solve by taking square roots.

2x² - 8 =100

• x = ±√54

• x = ±3√6

• x = ± 9√6

• x = ±2√27

Tags

CCSS.HSA-REI.B.4B

• {12.88,-12.88}

• {13.22,-13.22}

• {16}

• No Solution

Tags

CCSS.8.EE.A.2

Solve using square roots.

• ± 1/4

• ± 9/36

• ± 1/2

• No real solution

Tags

CCSS.HSA-REI.B.4B

Solve by taking the square root:

x² = 49

• -7

• 7

• 49

• ±7

Tags

CCSS.HSA-REI.B.4B