Chapter 3 Review

Simplify  $\left(3-5i\right)-\left(-4+7i\right)$  

•  $7-12i$  

•  $-1+2i$  

•  $23+41i$  

•  $7+2i$  

Tags

CCSS.HSA.APR.A.1

Simplify  $\left(2+3i\right)\left(4-5i\right)$  

•  $8-15i$  

•  $23+2i$  

•  $8-13i$  

•  $6+15i$  

Tags

CCSS.HSA.APR.A.1

Simplify:  $3\left(4+6i\right)-\left(5-i\right)\left(6+2i\right)$  

•  $-20+14i$  

•  $10-3i$  

•  $-8-6i$  

•  $5+11i$  

Tags

CCSS.HSA.APR.A.1

Simplify $6i\cdot5i$ 

•  $30i$  

•  $30$  

•  $-30$  

•  $11i$  

Tags

CCSS.HSA.APR.A.1

 $2\sqrt{-50}$  Simplify

•  $4i\sqrt{5}$  

•  $50i\sqrt{2}$  

•  $25i$  

•  $10i\sqrt{2}$  

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

Find the missing value "c" to complete the square.

x² + 6x + ____

• 9

• 12

• 36

• - 9

Tags

CCSS.HSA-REI.B.4B

Given the perfect square trinomial, identify the equivalent expression to

 $x^2-18x+81$  

•  $\left(x-18\right)^2$  
  

•  $\left(x-9\right)^2$  
  

•  $\left(x+81\right)^2$  
  

•  $\left(x+9\right)^2$  
  

Tags

CCSS.HSA.APR.C.4

What did you need to add to both sides to complete the square?

  $x^2-12x+_{ }$  ___ =  20 + ___

• 6

• 36

• 10

• 144

Tags

CCSS.HSA-REI.B.4B

Solve the equation. Answer should be in simplest radical form  $5x^2+13=53$  

•  $x=\pm\sqrt{8}$  

•  $x=8$  

•  $x=\pm4\sqrt{2}$  

•  $x=\pm2\sqrt{2}$  

Tags

CCSS.8.EE.A.2

Solve the equation   $5x^2-2x-7=4x^2-8x+9$  

•  $x=8,\ -2$  

•  $x=-4\pm\sqrt{6}$  

•  $x=-8,\ 2$  

•  $x=3\pm2\sqrt{5}$  

Tags

CCSS.HSA-REI.B.4B