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anonymous

  • 5 years ago

When solving the radical; SQRT1-2x = 1 + x It says first step: Square both sides: = 1 – 2x = 1 + 2x + x^2 I am confused about where this part of the equation is coming from: \/ 1 – 2x = 1 + 2x + x^2

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  1. anonymous
    • 5 years ago
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    (1 + x)^2 you're squaring both sides of the equation foil it you'll get 1 + 2x + x^2

  2. anonymous
    • 5 years ago
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    ohhhh wow u have to use FOIL alot in this lesson :P thx tho!!

  3. anonymous
    • 5 years ago
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    Yeah, learn to love foil =)

  4. anonymous
    • 5 years ago
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    yup have fun foiling will get easier and faster the more you do it :D

  5. anonymous
    • 5 years ago
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    haha yes but it will never get less annoying!! ^^ lol

  6. anonymous
    • 5 years ago
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    Of course it will, then you'll move on to fun things like (x^2 + 35x + 5)(3x^2 + 2x + 1)

  7. anonymous
    • 5 years ago
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    polpak

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spraguer (Moderator)
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