PlosMathLearning

Forms

Quadratic Equations



Directions: You will be given 20 minutes to complete this quiz. Insert your answer in the box beside the word "Answer". After you have finished putting in your answers, click on the "See score" button, to see your score.
The program will reveal which questions you got wrong. You can go back and change your answers until you have answered all questions correctly.


When giving your answers for the value of x you must place the lower x value in the top box and the higher value in the to the bottom.

Example: Solve x2 + 4x - 5 = 0

For this problem you should get for your answer x = -5 and x = 1. You should place your answer in this form:

                                                                                                                            Answer x =
-5
                                                                                                                            Answer x =
1


1. Solve x2 + 10x + 16 = 0.
Answer x =
Answer x =


2. Solve x2 - 7x - 18 = 0.
Answer x =
Answer x =


3. Solve x2 - 10x + 21 = 0.
Answer x =
Answer x =


4. Solve 3x2 + 2x - 8 = 0.
Answer x =
Answer x =

5. Solve 2x2 - 5x + 3 = 0.
Answer x =
Answer x =






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