Solve Using Square Roots

Solve: k² - 6 = -50

• k = ±4i√11

• k = ±4√11

• k = ±2i√11

• k = ±2√11

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve x²− 4 = 0

•  2 and -2

• 4 and -4

• 16 and -16

• 8 and -8

Tags

CCSS.HSA-REI.B.4B

Solve: 2x²= 30

• x= √5

• x= √30

• x= √15

• x= ±5

Tags

CCSS.8.EE.A.2

Tags

CCSS.HSA-REI.B.4B

Tags

CCSS.HSA-REI.B.4B

(x - 7)² = 5

• x = 7-√5

• x = 7+√5

• x = √5

• x = 7±√5

Tags

CCSS.HSA-REI.B.4B

• No Real Solution

Tags

CCSS.HSA-REI.B.4B

(x + 3)² = 36

• x = √36

• x = √39

• x = -9 and x = 3

• x = 9 and x = -3

Tags

CCSS.HSA-REI.B.4B

2x²= 30

• x= √5

• x= √30

• x= √15

• x= ±5

Tags

CCSS.8.EE.A.2

Solve by taking the square root:

x² = 49

• -7

• 7

• 49

• ±7

Tags

CCSS.HSA-REI.B.4B