anonymous
  • anonymous
Help needed :/ This one is a little different... Find the solutions of the following quadratic equation by completing the square: x^2-x=20* The solutions are: a. -5 or -4 b. -5 or 4 c. 5 or 4 d. 5 or -4
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
\[\Large x^2-x=20^* \quad ??? \quad \text{what does * mean??}\]
anonymous
  • anonymous
*= closed circle= multiply
anonymous
  • anonymous
\[x ^{2}-5x+4x-20 = 0\] x(x-5) +4(x-5)=0 (x+4)(x-5=0 x=-4,x=5

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anonymous
  • anonymous
does it mean 20 to the power 0 ?? like \[\LARGE 20^0\]
anonymous
  • anonymous
dont burden him, he hates math, :)
anonymous
  • anonymous
@myko where does that equation came from ??
anonymous
  • anonymous
LOL I think myko got it :) Thanks for trying Kreshnik.
anonymous
  • anonymous
from my keyboard
anonymous
  • anonymous
Haha :D
anonymous
  • anonymous
@myko I know it came from your keyboard but if there's \[20^0\] then it's equal to 1 !& @mathsux4real ... I was just trying to know exactly what the given are :( , I wouldn't bother my self asking you if I didn't know the answer would I ?? :)
anonymous
  • anonymous
that's just a typing mistake. He had been asking questions about quadratic equations all day long...
anonymous
  • anonymous
but did you read what we write? "*= closed circle= multiply" @myko
anonymous
  • anonymous
sry @Kreshnik for "from my keyboard" just having a bit of fun
anonymous
  • anonymous
ok ok .. anyway , sorry for dragging the task down , next time I'll do better :) O_O
anonymous
  • anonymous
if that would be one, there is no solution
anonymous
  • anonymous
at least in reals
anonymous
  • anonymous
@myko Therefore I wanted to be sure, what number it is :(
anonymous
  • anonymous
kk, sry
anonymous
  • anonymous
SORRY FOR THE CONFUSION GUYS... :/ Thanks for helping though :)

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