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ashleyb

  • 3 years ago

Rewrite y = x2 + 14x + 29 in general form using the complete the square method

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  1. peanlouise
    • 3 years ago
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    (x+14/2)^2 +29 - (14/2)^2

  2. peanlouise
    • 3 years ago
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    so, you take the first term +( half second term/2)^2 - (half second term/2)^2 + c

  3. ashleyb
    • 3 years ago
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    so it would be (x+78)-49??

  4. peanlouise
    • 3 years ago
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    no. You need to keep it in the squared form. So, you have (x+7)^2 +29-49. The simplified answer is then (x+7)^2 -20

  5. ashleyb
    • 3 years ago
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    nvm..it would be (x+78)(x-78)...right

  6. peanlouise
    • 3 years ago
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    if you foil it out.

  7. ashleyb
    • 3 years ago
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    oh okay...i get it now

  8. peanlouise
    • 3 years ago
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    just remember the formula, (x + B/2)^2 +c-(B/2)^2

  9. ashleyb
    • 3 years ago
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    thankyou for ur help

  10. peanlouise
    • 3 years ago
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    no problem. These gave me such problems before. Have a good day.

  11. ashleyb
    • 3 years ago
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    you too :)

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