1.
Solve
x
2
- 4
x
+ 1 = 0 by completing the square.
A.
1, 3
B.
C.
D.
Hint
2.
Solve
x
2
– 8
x
+ 16 = 13 by taking the square root of each side.
A.
-2
B.
4
C.
-4
D.
2
Hint
3.
Solve
x
2
– 12
x
+ 34 = 0 by taking the square root of each side.
A.
B.
{6}
C.
{5, 7}
D.
Hint
4.
When using a quadratic equation of the form
a
x
2
+
b
x
+
c
= 0 to find distances, what should always be ignored?
A.
any negative solution
B.
any positive solution
C.
any solution if
is negative
D.
any solution if
a
is negative
Hint
5.
Solve
x
2
– 16
x
– 17 = 0 by completing the square.
A.
{1, 13}
B.
{1, 17}
C.
{–1, 13}
D.
{–1, 17}
Hint