anonymous
  • anonymous
quadratic equation by completing the square. check both roots . equation below
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
\[x^2-6x=7\]
anonymous
  • anonymous
please explain each step
NotTim
  • NotTim
well, first subtract 7 from both sides.

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More answers

anonymous
  • anonymous
take half of 6 get 3 write \[(x-3)^2=7+...\] then think "3 squared is 9" write \[(x-3)^2=7+9=16\] take the root, don't forget the \(\pm\) get \[x-3=\pm\sqrt{16}\] \[x-3=\pm4\]
anonymous
  • anonymous
then solve \[x-3=4\iff x=7\] or \[x-3=-4\iff x=-1\]
anonymous
  • anonymous
all the steps are there
anonymous
  • anonymous
wow i think i get it let me try it on paper
anonymous
  • anonymous
hmm thats not right
anonymous
  • anonymous
wait my mistake you got half right but there is supposed to be one more answer
NotTim
  • NotTim
no...satellite gave enough I think. There's 2 values for x in his answer. I dont think there's a third one is a trinomial like this.
anonymous
  • anonymous
you are right my bad again i didnt see or

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