Have an account?
Skip to Content
Build your own quiz
Suggestions for you
Mathematics
9th -
11thgrade
Solving Quadratic Equations by Completing the Square
15 questions
Show Answers
See Preview
- 1. Multiple ChoiceWhat is the first step to solving THIS equation by completing the square?
a2 + 10a + 21 = 0Set the equation equal to zeroDivide 10 by 2 and add the result to both sidesAdd a2 and 10a togetherSubtract the 21 - 2. Multiple Choice
Complete the Square
x2 + 6x - 5
(x + 3)2 = 5
(x + 6)2 = 9
(x + 3)2 = 14
(x + 6)2 = 14
- 3. Multiple ChoiceWhen factoring
x2 - 4x + 4 = 20,
what goes in the blank?
(x - __ )2 = 2042820 - 4. Multiple Choice
- 5. Multiple Choice
- 6. Multiple ChoiceWhen factoring
x2 - 4x + 4 = 20,
what goes in the blank?
(x - __ )2 = 2042820 - 7. Multiple ChoiceComplete the Square
x2 + 6x = 5(x + 3)2 = 5(x + 6)2 = 9(x + 3)2 = 14(x + 6)2 = 14 - 8. Multiple Choice
When factoring
x2 - 4x = 16,
what goes in the blank?
(x __ )2 = 16
-4
-2
+4
+2
- 9. Multiple Choice
What is the correct factored form of this equation?
x2 + 2x = 8
(x-1)2 = 9
(x+1)2 = 9
(x+4)2 = 9
(x-4)2 = 9
- 10. Multiple ChoiceSolve by completing the square.
x2 + 4x= 12x = 2 and -2x = -6 and 2x = 6 and -2x = 1 and -1 - 11. Multiple ChoiceSolve by completing the square.
x2 − 10x - 11= 0x = −1 and 11x = 1 and −11x = −10 and 11x = −5 and 25 - 12. Multiple ChoiceSolve the equation:
5x2 - 35x + 60 = 0x = 3, -4x = -3, 4x = 3, 4x = -3, -4 - 13. Multiple Choice
Solve the following quadratics equation by completing the square...
x2 + 4x + 1 = 0
x = -2 ± √3
x = -3 ± √2
x = 2 ± √3
x = 2 ± √2
- 14. Multiple ChoiceSolve by completing the square.
y2 + 10y = -91 and -12-1 and -91 and -91 and -1 - 15. Multiple ChoiceSolve by completing the square:
k2 − 12k + 23 = 0{6 + √13, 6 - √13}{-6 + √13, -6 - √13}{6 + √59, 6 - √59}{-6 + √59, -6 - √59} - Answer choicesTagsAnswer choicesTags