Solving Quadratics Using Square Roots

• ±81
• ±9
• ±3
• No real solution

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.4

Solve for x: 
(x+6)²=49

• x=7,12
• x=±7
• x=1,-13
• x=43,-55

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.4

12.  Solve by factoring 
(x - 2 )² = 49

• -5, 8

• ^{7, -7}
• 9, -5
• ^{9, -9}

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

Solve by taking square roots:
5b² - 4 = 41

• b = 9, b = -9
• b = 3, b = -3
• b = 8, b = -8
• no solution

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.2

CCSS.HSA.REI.B.4

Solve by taking square roots:
k² - 6 = 43

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

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.A.2

CCSS.HSA.REI.B.4

• {12.88,-12.88}

• {13.22,-13.22}

• {16}

• No real solution

Tags

CCSS.HSA.REI.B.4

Solve using square roots.

• ±√9
• ±3
• ±1
• No real solution

Tags

CCSS.HSA.REI.A.2

CCSS.HSA.REI.B.4

Solve:  $x^2+8=28$  

• No solution

•  $x=\pm4\sqrt{5}$  

•  $x=\pm6$  

•  $x=\pm2\sqrt{5}$  

Tags

CCSS.HSA.REI.B.4

Solve:  $7x^2=-21$  

•  $x=\pm\sqrt{3}$  

• No real solution

•  $x=\pm2\sqrt{7}$  

•  $x=\pm\sqrt{14}$  

Tags

CCSS.HSA.REI.B.4

Solve.

4m² - 100 = 0

• m= ±25

• m=96

• m= ±5

• No Real Number Solution

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.4