solving quadratic equations with square roots

5x²=-15

• 3, -3
• 1.7, -1.7 
• 1.5, -1.5 
• no solution 

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

2x²=98

• 49, -49
• 9.89, -9.89
• 7, -7
• no solution 

Tags

CCSS.8.EE.A.2

Solve by square roots (SADMEP)
k² - 6 = 43

• k = √37
• k = 37 or - 37
• k = 7, k = -7
• no solution

Tags

CCSS.8.EE.A.2

-7x² +21 = 14

• 1
• -1
• NO Real Solutions
• 1, -1

Tags

CCSS.8.EE.A.2

x² = 100

• 10

• 10 or -10

• 50

• 50 or -50

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

2x²= 30

• x= √5
• x= √30
• x= √15
• x= ±5

Tags

CCSS.8.EE.A.2

x²−10=19

• x = √29
• x = ±2√9
• x = ±29
• x = ±5√19

Tags

CCSS.8.EE.A.2

Solve using square roots.

• A
• B
• C
• D

Tags

CCSS.8.EE.A.2

Solve using square roots.

• A
• B
• C
• D

Tags

CCSS.8.EE.A.2