Solve by taking square root and factoring

Solve

x² + 2x - 20 = 4

• x = -6, x = 4

• x = 6, x = -4

• x = 12, x = -2

• x = 8, x = -3

Tags

CCSS.HSA-REI.B.4B

Solve:
x² - 49 = 0

• x = -7, x = 7
• x = -7
• x = 7
• x = -7, x = 1

Tags

CCSS.HSA-REI.B.4B

n² - 2n = 0

• n = 2 and 0
• n = -2 and 0
• n = 2
• n = 0

Tags

CCSS.HSA-REI.B.4B

Solve.

(2x - 4)² = 16

• x = 4

• x = 10

• x = -2

• x = 0, 4

Tags

CCSS.HSA-REI.B.4B

 $4r^2-10=-26$  

•  $2$  

•  $-4$  

•  $\pm2i$  

•  $\pm i\sqrt{2}$  

Tags

CCSS.HSA-REI.B.4B

 $12x^2+4=-236$  

•  $\pm2i\sqrt{5}$  

•  $-\sqrt{20}$  

•  $\pm20i$  

•  $\pm5i\sqrt{2}$  

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve by factoring:  2x²+ 7x + 6 = 0

• x= 3/2 and x = 2
• x = -3/2 and x = -2
• x = 6 and x = 7
• x = -6 and x = -7

Tags

CCSS.HSA-REI.B.4B

Solve by factoring:  $2n^2-11n+12=0$  
Enter your answer separated by a comma.

Tags

CCSS.HSA-REI.B.4B