Solve by Taking Square Roots

Solve

 $9x^2-49=0$  

•  $\frac{7}{3}$  

•  $\frac{7}{3}i$  

•  $-\frac{7}{3}$  

•  $-\frac{7}{3}i$  

Tags

CCSS.HSA-REI.B.4B

Solve

 $4x^2+15=0$  

•  $\frac{\sqrt{15}}{2}$  

•  $\frac{i\sqrt{15}}{2}$  

•  $-\frac{\sqrt{15}}{2}$  

•  $-\frac{i\sqrt{15}}{2}$  

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

 $-2x^2-196=0$  

•  $7i\sqrt{2}$  

•  $-7i\sqrt{2}$  

•  $7\sqrt{2}$  

•  $-7\sqrt{2}$  

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve  $\left(x+7\right)^2-25=0$  

•  $-2$  

•  $-12$  

•  $2$  

•  $12$  

Tags

CCSS.HSA-REI.B.4B

 $2x^2-9x+8=0$  

Use discriminant to determine the nature of the solutions

• One Real Rational Solutions

• Two Real Irrational Soltuions

• Two Real Rational Solutions

• Two Complex and Conjugate Solutions

Tags

CCSS.HSA-REI.B.4B