Day 16 Practice - Extracting the Square

256 = n²

• 16
• 16 and -16
• 1.6
• -16

Tags

CCSS.8.EE.A.2

y² = 144

• 14
• 12
• -12
• -12 and 12

Tags

CCSS.8.EE.A.2

x² = -48

• +16, -16

• +4, -4

• +12, -12

• no solution

100c² = 9

• 3/10
• 3
• √9/100
• -3/10 and 3/10

Tags

CCSS.8.EE.A.2

121 = 25x²

• -11 and 11

• 121/25

• -11/5 and 11/5

• -121/25 and 121/25

3n² = 144

• $\pm4\sqrt{3}$

• $\pm3\sqrt{4}$

• -12 and 12

• 4

2k² - 37 = 61

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

Tags

CCSS.8.EE.A.2

10 - 3a² = -2

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

Tags

CCSS.8.EE.A.2

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

Tags

CCSS.8.EE.A.2

x² = 500

• no solution

• +50, -50

• $\pm10\sqrt{5}$

• $\pm5\sqrt{10}$