2-5 Quizizz Complete Square Practice
Quiz
•
Mathematics
•
10th - 12th Grade
•
Practice Problem
•
Hard
Standards-aligned
Debra Schneider
Used 16+ times
FREE Resource
Enhance your content in a minute
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the value that completes the square and then rewrite as a perfect square.
a2 - 40a + ____
1600; (a - 20)2
-20; (a - 20)2
81; (a - 9)2
400; (a - 20)2
Answer explanation
Divide -40 by 2. Square it for the first answer. Second answer is (a plus first result).
Tags
CCSS.HSA-REI.B.4B
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Find the value that completes the square.
x2 + 4x + ___
Answer explanation
Divide +4 by 2.
Tags
CCSS.HSA-REI.B.4B
3.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Rewrite as a perfect square.
____
Answer explanation
Answer is (x plus result)^2.
Tags
CCSS.HSA-REI.B.4B
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Solve the equation by completing the square.
A
B
C
D
Answer explanation
Subtract 20 from both sides.
Do +6/2. Then square it.
Add that to both sides.
Rewrite the left side as (x + (+6/2))^2
Take the square root of both sides.
Remember to use +- square root on right side.
Now, solve for x.
You should have two answers.
Tags
CCSS.HSA-REI.B.4B
CCSS.HSN.CN.C.7
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Solve. You might want to complete the square.
Write just the answers without "x".
Answer explanation
Add 11 to both sides.
Do -4/2. Then square it.
Add that to both sides.
Rewrite the left side as (x + (-4/2))^2
Take the square root of both sides.
Remember to use +- square root on right side.
Now, solve for x.
You should have two answers.
Tags
CCSS.HSA-REI.B.4B
6.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Solve. You might want to complete the square.
Write just the answers without "x".
Answer explanation
Do 14/2. Then square it.
Add that to both sides.
Rewrite the left side as (x + (14/2))^2
Take the square root of both sides.
Remember to use +- square root on right side.
Now, solve for x.
You should have two answers.
Tags
CCSS.HSA-REI.B.4B
7.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Solve. You might want to complete the square.
Write just the answers without "x".
Answer explanation
Do -8/2. Then square it.
Add that to both sides.
Rewrite the left side as (x + __)^2
Take the square root of both sides.
Remember to use +- square root on right side.
Now, solve for x.
You should have two answers.
Tags
CCSS.HSA-REI.B.4B
CCSS.HSN.CN.C.7
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