Solve each equation by completing the square: x2 - 8x -12 = 0
Quadratics Complete the Square

Quiz
•
Mathematics
•
10th Grade
•
Hard
Anthony Clark
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
X = -2 + 2√7 or −2 − 2√7
X= 2√7 or − 2√7
X = −4 + 2√7 or −4 − 2√7
X = 4 + 2√7 or 4 − 2√7
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the first step to solving THIS equation by completing the square?
v2 + 8v - 84 = 0
Set the equation equal to 0.
Add v2 and 8v together.
Add 84 on both sides.
Divide every term by 1.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the second step to solving THIS equation by completing the square?
v2 + 8v - 84 = 0
Divide the 2nd term by 2 and take the square root of it.
Add v2 and 8v together.
Add 84 on both sides.
Divide the 2nd term by 2 and square it.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve each equation by completing the square: x2 - 12x - 45 = 0
X = -3 or 15
X= 3 or -15
X = -6 or 6
X = -9 or 9
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Write the following quadratic expression in completed square form... x2 + 4x + 10
(x + 4)2 + 6
(x + 2)2 + 6
(x + 4)2 - 6
(x + 2)2 - 6
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