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smartgirl101 Group Title

x^2 + 6x + 11 can be written as (x + h)^2 + k. Find k.

  • 2 years ago
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  1. Chlorophyll Group Title
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    Do you know complete square?

    • 2 years ago
  2. smartgirl101 Group Title
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    no

    • 2 years ago
  3. .Sam. Group Title
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    The technique goes by ax^2+bx+c=0 The coefficient of x^2 must be 1, so factor 'a' out a(x^2+bx/a)+c=0 divide bx/a by 2,then set the x^2 becomes x only,eliminate the x from b/a, then square the whole bracket you ended up with a(x+b/2a)^2+c=0 then, you need to bring the b/2a OUT the brackets and square it, and when you bring it out, it is always negative, be sure that the 'a' will be multiplying the one you bought it out a(x+b/2a)^2-(b/2a)^2(a)+c=0

    • 2 years ago
  4. smartgirl101 Group Title
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    thanks:)

    • 2 years ago
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