A2: Unit 3 Section 6-2 Practice Completing the Square

A2: Unit 3 Section 6-2 Practice Completing the Square

Multiple Choice

 $x^2=16x-63$  

Question 3 on the 3.6 classwork

•  $x=\left\{7,9\right\}$  

•  $x=\left\{4,8\right\}$  

•  $x=\left\{8,1\right\}$  

Multiple Choice

 $x^2-2x-3=0$  

Question 7 but change the problem.

•  $x=\left\{1,2\right\}$  

•  $x=\left\{-1,3\right\}$  

•  $x=\left\{5,8\right\}$  

Multiple Choice

 $x^2-8x+4=0$  

Question 9

•  $x=6\sqrt{3}$  

•  $x=4\pm\sqrt{12}$  

•  $x=4\pm2\sqrt{3}$  

Multiple Choice

 $3x^2=3-42x$  
Question 10

•  $x=7\pm\sqrt{50}$  

•  $x=-7\pm5\sqrt{2}$  

•  $x=-7\pm25\sqrt{2}$  

Multiple Choice

 $x^2+2x+37=0$  
Question 11

•  $x=-1\pm6i$  

•  $x=\pm5i$  

•  $x=\left\{-7,5\right\}$  

Multiple Choice

 $2x^2-20x+89=-87$  
Question 12

•  $x=5\pm3i\sqrt{7}$  

•  $x=-5\pm63i$  

•  $x=-5\pm\sqrt{63i}$  

The next questions

These questions are NOT in your notes now. They are a review from solving by square roots (Lesson 3.5 from Monday)

Multiple Choice

Solve using square roots.

3x² - 27 = 0

• x = 4.9, -4.9

• x = 9, -9

• x = 3, -3

• No solution

Multiple Choice

Solve using square roots.

• A
• B
• C
• D

Multiple Choice

Solve using square roots.

• A
• B
• C
• D

Multiple Choice

Solve using square roots

• A

• B

• C

• D

Multiple Choice

Solve using square roots.

• A

• B

• C

• D