Chapter 4 Quadratics Test Review

Solve by factoring:

 $x^2+6x+8=0$  

• x= 2, 4

• x=6, 8

• x=-2, 4

• x=-4, -2

Tags

CCSS.HSA-REI.B.4B

Solve by factoring:

 $x^2+18=9x$  

• x= -6, -3

• x= 6, 3

• x= 2, 9

• x= -9, -2

Tags

CCSS.HSA-REI.B.4B

Solve by factoring:

 $2x^2+6x=-4$  

• x= -4, -2

• x= 1, 2

• x= -2, -1

• x= -2, 1

Tags

CCSS.HSA-REI.B.4B

Solve by factoring:

 $49x^2-36=0$  

•  $x=\pm\frac{7}{6}$  
  

•  $x=6,\ 7$  
  

•  $x=\pm\frac{6}{7}$  

•  $x\ =\ -7,\ 6$  
  

Tags

CCSS.HSA-REI.B.4B

Solve by factoring:

 $-24x^2-38x=-42$  

•  $x=-\frac{7}{3},\ \frac{3}{4}$  
  

•  $x=\frac{3}{7},\ -\frac{4}{3}$  
  

•  $x=-7,\ 3$  

•  $x\ =\ \frac{7}{4},\ -\frac{3}{3}$  
  

Tags

CCSS.HSA-REI.B.4B

Solve by factoring:

 $15x^2=10x$  

•  $x=5,\ \frac{2}{3}$  
  

•  $x=0,\ \frac{2}{3}$  
  

•  $x=0,\ 2$  

•  $x\ =\ 5,\ 2$  
  

Tags

CCSS.HSA-REI.B.4B

Solve by finding square roots:

 $-5x^2=80$  

•  $x=\pm4$  
  

•  $x=16$  
  

•  $x=\pm16$  

•  $x\ =\ \pm4i$  
  

Tags

CCSS.HSA-REI.B.4B

Solve by finding square roots:

 $x^2-4=0$  

•  $x=\pm4$  
  

•  $x=\pm2$  
  

•  $x=4$  

•  $x\ =\ \pm2i$  
  

Tags

CCSS.HSA-REI.B.4B

Solve by finding square roots:

 $3x^2-15=0$  

•  $x=\pm\sqrt{5}$  
  

•  $x=\pm5$  
  

•  $x=\sqrt{5}$  

•  $x\ =\ \pm i\sqrt{5}$  
  

Tags

CCSS.HSA-REI.B.4B

Solve by finding square roots:

 $5x^2+40=0$  

•  $x=\pm8$  
  

•  $x=\pm2i\sqrt{2}$  
  

•  $x=-8$  

•  $x\ =\ \pm\sqrt{8}$  
  

Tags

CCSS.HSA-REI.B.4B