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Worksheets2.06 Do Now
Total questions: 10
Worksheet time: 2hrs 1mins
Name
Class
Date
1.
What do you do to the b value to correctly complete the square?
a)
square it
b)
divide it by 2 and square the result
c)
divide it by 2 and take the square root of the result
d)
divide it by 2 only
2.
To solve by completing the square, what needs to be moved in this equation?
x2 = 9 - 4x
x2 = 9 - 4x
a)
the -4x
b)
the 9
c)
the x2
3.
What is the first step to solving THIS equation by completing the square?
a2 + 10a + 21 = 0
a2 + 10a + 21 = 0
a)
Set the equation equal to zero
b)
Divide 10 by 2 and add the result to both sides
c)
Add a2 and 10a together
d)
Subtract the 21
4.
When factoring
x2 - 4x + 4 = 20,
what goes in the blank?
(x - __ )2 = 20
x2 - 4x + 4 = 20,
what goes in the blank?
(x - __ )2 = 20
a)
4
b)
2
c)
8
d)
20
5.
Complete the Square
x2 + 6x = 5
x2 + 6x = 5
a)
(x + 3)2 = 5
b)
(x + 6)2 = 9
c)
(x + 3)2 = 14
d)
(x + 6)2 = 14
6.
Complete the square for
x2 + 12x + ____
x2 + 12x + ____
a)
x2 + 12x + 144
b)
x2 + 12x + 36
c)
x2 + 12x - 36
d)
x2 + +12x - 144
7.
Complete the Square
x2 + 6x + 20
x2 + 6x + 20
a)
(x + 3x)2 + 11
b)
(x + 3)2 + 11
c)
(x + 6)2 + 11
d)
(x + 3)2 + 29
8.
What should be added to both sides of the following equation to complete the square?
x2 + 12x = 5
x2 + 12x = 5
a)
12
b)
6
c)
36
d)
5
9.
What value of c would make this a perfect square trinomial?
x2 - 12x + c
x2 - 12x + c
a)
36
b)
24
c)
144
d)
-36
10.
Factor the perfect square trinomial
x2 + 14x + 49
x2 + 14x + 49
a)
(x+7)2
b)
(x+7)(x-7)
c)
(x-7)2
d)
(x+14)2
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