Solve Quadratic Equations using Square Roots

Solve: k² - 6 = -50

• k = ±4i√11

• k = ±4√11

• k = ±2i√11

• k = ±2√11

Tags

CCSS.HSA.REI.B.4

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.CN.C.7

Solve: (x + 6)² = 1

• -5, -7

• 5, 7

• 5, -7

• -5, 7

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

Solve: 2(x - 3)² - 14 = 18

• 1, 7

• -1, 7

• -1, -7

• 1, -7

Tags

CCSS.HSA.REI.B.4

Solve for y. 
3y² - 4 = 287

• y = √97
• y = 97, -97
• y = √97, -√97
• y = √94.3, -√94.3

Tags

CCSS.HSA.REI.B.4

Solve: 3x² = -12

• x = -4, 4

• x = 2, -2

• x = 2i, -2i

• x = 4i, -4i

Tags

CCSS.HSA.REI.B.4

CCSS.HSN.CN.A.1

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.4

Solve x²− 4 = 0

•  2 and -2
• 4 and -4
• 16 and -16
• 8 and -8

Tags

CCSS.HSA-REI.B.4B

Solve for x: 
(x+6)²=49

• x=7,12
• x=±7
• x=1,-13
• x=43,-55

Tags

CCSS.8.EE.A.2

Solve: 2x²= 30

• x= √5

• x= √30

• x= √15

• x= ±5

Tags

CCSS.HSA.REI.B.4

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