Ch. 2 Test Review Complex Numbers

Solve by factoring: x² = 7x + 18

• -7 and -18

• 9 and 2

• 9 and -2

• 2 and 7

Tags

CCSS.HSA.REI.B.4

Solve by factoring:  2x²+ 7x + 6 = 0

• x= 3/2 and x = 2
• x = -3/2 and x = -2
• x = 6 and x = 7
• x = -6 and x = -7

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

Solve for x:

(x-5)(x+6)=0

• {5,5 }

• { -5,-5 }

• { -5,-6 }

• {5,-6 }

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

Solve by finding square roots and simplify completely:
 $2x^2=20$ 

•  $x=\pm10$  

•  $x=\sqrt{10}$  

•  $x=\pm\sqrt{10}$  

• No real solutions

Tags

CCSS.HSA.REI.B.4

Solve by finding square roots and simplify completely:
 $x^2-16=0$ 

•  $x=\pm16$  

•  $x=4$  

•  $x=\pm4$  

• No real solutions

Tags

CCSS.HSA.REI.B.4

Solve using the Quadratic Formula:
 $x^2+10x+9=0$ 

•  $x=1\ or\ x=9$  

•  $x=-1\ or\ x=-9$  

•  $x=-2\ or\ x=-18$  

• No real solutions

Tags

CCSS.HSA.REI.B.4

Solve using the Quadratic Formula:
 $2x^2+6x-8=0$ 

•  $x=2\ or\ x=-8$  

•  $x=-1\ or\ x=4$  

•  $x=1\ or\ x=-4$  

• No real solutions

Tags

CCSS.HSA.REI.B.4

Solve using the Quadratic Formula:
 $5x^2+3x-1=0$ 

•  $x=\frac{3\pm\sqrt{29}}{5}$  

•  $x=\frac{8}{5}\ or\ x=-\frac{2}{5}$  

•  $x=\frac{-3\pm\sqrt{29}}{10}$  

• No real solutions

Tags

CCSS.HSA.REI.B.4

Tags

CCSS.HSA.REI.B.4

• Square root

• Quadratic formula

• X-intercepts

• Discriminant