Practice Page
Directions: Solve the following questions, for the indicated variable, using the quadratic formula. It is possible that some of these problems can also be solved by factoring, but for right now, we are practicing the quadratic formula.
1.
Solve using the quadratic formula:
            x2 - 2x - 24 = 0
spy1
       Choose:
 
x = -6; x = 4
x = 4; x = 6
  x = 6; x = -4 x = -4; x = -6

 

2.
Solve using the quadratic formula:
            m2 = 20 - 4m
spy2
       Choose:
 
qfm2
qfm2a
  qfm2b qfm2c



3.
Solve using the quadratic formula:
            x2 + 25 = 0
spy3
       Choose:
 
± 5
+5 only
  ± 5i + 5i only



4.
Given y = 16x2 - 8x.
Find all real values of x for which y = -1.
spy4
       Choose:
 
qfmath4bb
qfmath4aa
  qfmath4cc qf4dd



5.
Solve using the quadratic formula:
           3r (3r + 1) = 2
spy5
       Choose:
 
qfmath5a
qfmath5b
  qfmath5c qfmath5d




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