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#1 2006-07-30 11:11:08
- MathsIsFun
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Completing The Square
Complete the Square for the following:
1. x2 + 10x + 21
2. 2x2 + 7x + 4
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
#2 2006-07-30 12:06:33
- Zhylliolom
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Re: Completing The Square
3. x² -10x + 16.
4. 2x² - 3x + 4.
Bonus:
5. Complete the square for both x and y, to find the standard equation for this circle:
x² - 6x + y² - 4y + 9 = 0.
#3 2006-08-01 17:08:57
- Devantè
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Re: Completing The Square
6. x² + x + -3.75 = 0
7. x² + 5x + 6 = 0
8. x² + 2x + 1 = 0
9. x² + 3x + -10 = 0
10. m² + -4m + -21 = 0
11. 3k² + 18k + 15 = 0
12. 2n² + -22n + 60 = 0
13. 4y² + 8y + -21 = 0
14. 8y² + 10y + -3 = 0
15. 50k² + -20k + -6 = 0
16. 100x² + -100x + 9 = 0
17. 10t² = t + 2
18. 18m² + 6m + 6 = 6m² + 30m + -3
19. p² + -0.75p + 0.125 = 0
20. 2x² = x² + 1.75 + -3x
21. x² = 0.6x + -0.08
22. 3y² + -2.55y + -1.0 = 0.5
23. j² + -3.5j + 1.5 = 0
24. c² + 3.75c + -1 = 0
25. w² + 10.1w + 1 = 0
26. x² + -11.5x + -6 = 0
#4 2006-09-30 19:54:51
- justlookingforthemoment
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Re: Completing The Square
Complete the following using fractions, not decimals.
27. x² + 3x + 1
28. x² - x - 7
29. x² + 5x - 2
30. x² - 29x - 7
31. x² - 7x +9
32. x² + 13x + 17
#5 2007-11-16 13:23:43
- iamtheshoveler
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Re: Completing The Square
MathsIsFun wrote:
Complete the Square for the following:
1. x2 + 10x + 21
2. 2x2 + 7x + 4
the answer to 1. is -3, -7
#6 2007-11-16 13:37:43
- iamtheshoveler
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Re: Completing The Square
how do you get the answers to these problems?
#7 2008-04-07 12:52:05
- jum
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Re: Completing The Square
What is the basic way to
complete the square?
Last edited by jum (2008-04-07 13:03:40)
#8 2008-04-07 13:53:43
- MathsIsFun
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Re: Completing The Square
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman