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Solving Quadratic Equations by Completing the Square
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered
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18 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve the following quadratics equation by completing the square...
x2 - 10x - 5 = 0
x = -5 ± √30
x = 5 ± √30
x = 30 ± √5
x = -30 ± √5
Tags
CCSS.HSA-REI.B.4B
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve by completing the square.
x2 +12x = 5
X = 6 + √41 or 6 − √41
X= 35 or 47
X = −6 + √41 or −6 − √41
X = √35 or √47
Tags
CCSS.HSA-REI.B.4B
3.
DRAG AND DROP QUESTION
1 min • 1 pt
Lori is completing the square to solve the quadratic equation. Which equation is the result of correctly completing the square?
Tags
CCSS.HSA-REI.B.4B
4.
DROPDOWN QUESTION
1 min • 1 pt
8
64
16
4
256
Tags
CCSS.HSA-REI.B.4B
5.
DRAG AND DROP QUESTION
1 min • 1 pt
x2 + 10x = -9 Steps to solve by completing the square are:
Take half of 10 and square it.
Add 25 to both sides.
Solve the perfect square trinomial
Take the square root of both sides
Solve for x to get a solution.
Take half of -9 and add to both sides.
Divide all terms by 10
Set equal to zero.
Tags
CCSS.HSA-REI.B.4B
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Tags
CCSS.HSA-REI.B.4B
7.
DROPDOWN QUESTION
1 min • 1 pt
Kevin wants to solve the equation by completing the square. What values complete the equation?
8
64
16
4
256
Tags
CCSS.HSA-REI.B.4B
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