Solving Equations with Square Rots

256 = n²

• 16
• 16 and -16
• 1.6
• -16

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.4

k² + 8 = 8

• 0, -0
• 4, -4
• 0
• 4

Tags

CCSS.HSA.REI.B.4

100c² = 9

• 3/10
• 3
• √9/100
• -3/10 and 3/10

y² = 144

• 14
• 12
• -12
• -12 and 12

Tags

CCSS.HSA.REI.B.4

121 = 25x² 

• -11 and 11
• 121/25
• -11/15 and 11/15
• -121/25 and 121/25

5n² = 245

• ^{-7 and 7}
• 7
• -49 and 49
• 49

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.4

-14 = r² - 23

• 9
• -9 and 9
• -3 and 3
• 3

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.4

2k² - 37 = 61

• -98 and 98
• -49 and 49
• -7 and 7
• 7

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.4

10 - 3a² = -2

• -2 and 2
• -4 and 4
• -12 and 12
• 4

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.4

• -45 and 45
• -5 and 5
• -225 and 225
• -15 and 15

Tags

CCSS.6.EE.B.5

CCSS.6.NS.C.7