anonymous
  • anonymous
What value should be added to the expression to create a perfect square? x2 – 20x A. 25 B. –25 C. 100 D. –100
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
@shadowhuntergaming
anonymous
  • anonymous
@ParthKohli
anonymous
  • anonymous
david help him

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More answers

anonymous
  • anonymous
lol
anonymous
  • anonymous
@Nurali
Nurali
  • Nurali
a^2-2ab+b^2
ParthKohli
  • ParthKohli
\[x^2 - 20x+ \cdots\]\[= (x)^2 - 2(10)(x) + \cdots\]Try to see how similar it is with something like\[(a-b)^2 = a^2 - 2ab + b^2\]
Nurali
  • Nurali
x^2-2(10)(x)+(10)^2
Nurali
  • Nurali
x^2-20x+100
Nurali
  • Nurali
so 100 is right one.
anonymous
  • anonymous
thanks so much @Nurali
Nurali
  • Nurali
My Pleasure.

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