anonymous
  • anonymous
complete square root add what number to both sides to x^2-6x=-8
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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amistre64
  • amistre64
what is a complete square?
amistre64
  • amistre64
add (b/2)^2
anonymous
  • anonymous
I did that I need a whole number I came up with 1 but it is not right

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anonymous
  • anonymous
-6/2 = -3 then you square that (-3)^2 = 9
amistre64
  • amistre64
blext didnt get a 1 ;)
anonymous
  • anonymous
b=-6/2^2 = 36/4
amistre64
  • amistre64
yes; and 36/4 = 9
anonymous
  • anonymous
where so you get 36?
amistre64
  • amistre64
6^2 = 36 --------- = 9 2^2 = 4
anonymous
  • anonymous
formula x^-6x=-8 b=(-6/2)^2
anonymous
  • anonymous
36/4 =9 so I put 9 on each side of the equation?
amistre64
  • amistre64
welll close; b = -6; the number you wanna add to both sides is: (b/2)^2
amistre64
  • amistre64
yes; add 9 to both sides to complete the square
anonymous
  • anonymous
okay that is not the example in my book
amistre64
  • amistre64
there are many ways to get to the same answer; you gotta pick what works for you :)
anonymous
  • anonymous
this is true I am taking this test for my last time on my math lab and want to get the correct answers.
amistre64
  • amistre64
the real solution is: (bx/2ax)^2 but for the a=1 thats rather obiquitous. and the x's always cancel anyways.
anonymous
  • anonymous
thank you

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