IM2 Solving by Square Root

Show your work for ALL 5 problems on a sheet of paper. Be very detailed with the work!

• Got it!

• Yes ma'm!

Tags

CCSS.8.EE.C.7B

Solve for the zeros using the square root method.

 $6x^2-3=291$  
SHOW YOUR WORK!

• 7 and -7

• 49 and - 49

•  $2\sqrt{3}\ and\ -2\sqrt{3}$  

•  $\sqrt{48}\ and\ -\sqrt{48}$  

Tags

CCSS.HSA-REI.B.4B

Solve for the zeros using the square root method.

 $25x^2+8=89$  
SHOW YOUR WORK!

• 6 and -6

•  $\sqrt{82}\ and\ -\sqrt{82}$  
  

•  $\frac{9}{5}\ and\ -\frac{9}{5}$  

•  $\frac{\sqrt{97}}{5}\ and\ -\frac{\sqrt{97}}{5}$  

Tags

CCSS.HSA-REI.B.4B

Solve for the zeros using the square root method.

 $5\left(x+1\right)^2=-75$  
SHOW YOUR WORK!

•  $1+\sqrt{15}\ and\ 1-\sqrt{15}$  
  

•  $-1+i\sqrt{15}\ and\ -1-i\sqrt{15}$  
  

•  $-1+15i\ and\ -1-15i$  

•  $-1+\sqrt{15}\ and\ -1-\sqrt{15}$  

Tags

CCSS.HSA-REI.B.4B

Solve for the zeros using the square root method.

 $-2\left(x-3\right)^2+8=170$  
SHOW YOUR WORK!

•  $3+i\sqrt{3}\ and\ 3-i\sqrt{3}$  
  

•  $-6\ and\ -12$  
  

•  $6\ and\ 12$  

•  $3+9i\ and\ 3-9i$  

Tags

CCSS.HSA-REI.B.4B

Solve for the zeros by FACTORING.

 $x^2+4x-21=0$  
SHOW YOUR WORK!

• - 4 and - 2

• - 3 and - 2

• 3 and - 7

• - 6 and 8

Tags

CCSS.HSA-REI.B.4B