Section 1-5 Solve by Taking Square Roots Practice

 $3r^2+7=37$  

•  $\pm10$  

•  $\pm\sqrt{10}$  

•  $\sqrt{10}$  

•  $\pm5$  

Tags

CCSS.8.EE.A.2

 $10x^2-6=1434$  

•  $\pm12$  

•  $\pm\sqrt{12}$  

•  $\pm2\sqrt{3}$  

•  $12$  

Tags

CCSS.8.EE.A.2

 $-9v^2=-504$  

•  $\pm\sqrt{56}$  

•  $\pm2\sqrt{14}$  

•  $56$  

•  $\pm2\sqrt{7}$  

Tags

CCSS.8.EE.A.2

 $5+7m^2=719$  

•  $102$  

•  $\pm2\sqrt{51}$  

•  $\pm\sqrt{102}$  

•  $51$  

Tags

CCSS.8.EE.A.2

 $3m^2-2=106$  

•  $\pm\sqrt{6}$  

•  $\pm6$  

•  $6$  

•  $36$  

Tags

CCSS.8.EE.A.2

 $49n^2+6=70$  

•  $\pm\frac{8}{7}$  

•  $\pm\sqrt{\frac{8}{7}}$  

•  $\frac{8}{7}$  

•  $\pm\frac{7}{8}$  

Tags

CCSS.8.EE.A.2

 $9r^2-2=646$  

•  $\pm2\sqrt{6}$  

•  $\pm3\sqrt{8}$  

•  $\pm2\sqrt{18}$  

•  $\pm6\sqrt{2}$  

Tags

CCSS.8.EE.A.2

Solve by taking square roots.
 $x^2-225=0$  

Hint: Isolate $x^2.$   

•  $\left\{\pm\ 14\right\}$  

•  $\left\{15\right\}$  

•  $\left\{\pm\ 15\right\}$  

•  $\left\{112.5\right\}$  

Tags

CCSS.HSA-REI.B.4B

Solve by taking square roots.
 $x^2-64=0$  

•  $\left\{\pm\ 32\right\}$  

•  $\left\{\pm\ 16\right\}$  

•  $\left\{\pm\ 8\right\}$  

•  $\left\{\pm\ 4\right\}$  

Tags

CCSS.HSA-REI.B.4B

Solve by taking square roots.
 $x^2=12$  

Hint: Remember to simplify your answer!

•  $\left\{\sqrt{12}\right\}$   

•  $\left\{144\right\}$  

•  $\left\{\pm\ 2\sqrt{3}\right\}$  

•  $\left\{6\right\}$  

Tags

CCSS.HSA-REI.B.4B