SEC. 2 Completing the Square Flashcards
1
Q
a) x2-4x-5
c) x2+x+1
f) x2-4x
A
a) x2-4x-5
(x-2)2-22-5
=(x-2)2-9
c) x2+x+1
(x-1/2)2-1/2+1
=(x-1/2)2+3/4
f) x2-4x
(x-2)2-22
(x-2)2-4
2
Q
h) x2-x-3
j) x2-10
A
h) x2-x-3
(x-1/2)2-1/22-3
=(x-1/2)2-13/4
j) x2-10x
(x-5)2-52
(x-5)2-25
3
Q
Complete the square of:
x2+6x-11=0
A
4
Q
Complete the square of:
x2-5x-25=0
A
5
Q
Complete the square of:
2x2+4x-7=0
A
6
Q
Complete the Square of:
-3x2+5x-1=0
A
7
Q
y=x2-10x-3
A
( 5, -28) not 28 like it says on the image
8
Q
Complete the square of:
y=3x2+12x+2
A
9
Q
Complete the square of:
y=-x2-3x+8
A
On the first step you are adding -(3/2)2
to both sides
10
Q
Complete the square of:
y=4x2-5x-1
A
11
Q
Complete the square of:
y= -3x2-6x+2
A
12
Q
Complete the Square of:
y=x2+2x-1
A
13
Q
a) Complete the square of:
y= -x2+3x+2
A
