Solving Quadratics Using Completing the Squares

Quiz
•
Mathematics
•
9th Grade
•
Hard
Anthony Clark
FREE Resource
11 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Subtract 21 from each side of the equation.
Add 21 to each side of the equation.
Divide -10 by 2, square it, and then add 25 to each side.
Divide -10 by 2, square it, and then subtract 25 from each side.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve by completing the square.
r2 -17r - 56 = 4
(20, -3)
(8, -1)
(5.6, 1.4)
(9.4, -2.4)
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve by completing the square.
x2 - 5 = -7x
(-6, -13)
No Solution
(0.7, -7.7)
(7, 4)
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve by completing the square.
4b2 - 16b - 86 = -2
(20.2, -4.2)
(7, -3)
(10.1, -2.1)
No Solution
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve by completing the square.
6x2 +12x -38 = 10
(3, -5)
(0.4, -2.4)
(4.4, -2.4)
(2, -4)
6.
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
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the first step to solving THIS equation by completing the square?
a2 + 10a + 21 = 0
Set the equation equal to zero
Divide 10 by 2 and add the result to both sides
Add a2 and 10a together
Subtract the 21
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