Solve Quadratics with Square Roots

Solve:

3x² = 12

• ± 2

• 2

• $\pm\sqrt{12}$

• ± 4

Tags

CCSS.8.EE.A.2

Solve:

-5x² = -50

• ± 5

• ± 10

• ± √10

• no real solutions

Tags

CCSS.8.EE.A.2

Solve:
 $x^2+4=68$  

•  $\pm8$  

•  $\pm2\sqrt{2}$  

•  $\pm6\sqrt{2}$  

•  $\pm72$  

Tags

CCSS.8.EE.A.2

Solve:

(x + 1) ² = 25

• ± 5

• 4 or -6

• -4 or 6

• ± 4

Tags

CCSS.HSA-REI.B.4B

Solve :

5b² - 4 = 41

• $\pm9$

• $\pm3$

• $\pm2\sqrt{10}$

• no real solutions

Tags

CCSS.8.EE.A.2

Solve:

x² - 4 = 76

• $\pm4\sqrt{5}$

• $\pm40$

• $\pm80$

• $\pm5\sqrt{4}$

Tags

CCSS.8.EE.A.2

Solve:
 $x^2=-40$ 

•  $\pm20$  

• No real solutions

•  $\pm2\sqrt{10}$  

•  $\pm10$  

Tags

CCSS.8.EE.A.2

Solve:
 $n^2+9=36$ 

•  $\pm3$  

•  $\pm3\sqrt{3}$  

•  $\pm3\sqrt{5}$  

•  $\pm6$  

Tags

CCSS.8.EE.A.2