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anonymous

  • 5 years ago

2y=sqrt(5y+6).... I'm pretty sure the answer is 2 but can anyone show me the steps?

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  1. anonymous
    • 5 years ago
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    \[2y=\sqrt{5y+6}\]?

  2. anonymous
    • 5 years ago
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    yes that is the equation

  3. anonymous
    • 5 years ago
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    you square both side get

  4. anonymous
    • 5 years ago
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    \[4y^{2}=5y+6\] move all in one side you get \[4y^{2}-5y-6=0\]

  5. anonymous
    • 5 years ago
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    now you factor; (4y+3)(y-2)=0 y=2 y=-3/4 you plug two answer and check , I think you know number 2 is solution

  6. anonymous
    • 5 years ago
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    OMG thank you so much!

  7. anonymous
    • 5 years ago
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    you welcome

  8. anonymous
    • 5 years ago
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    You are the best! really! my dad couldn't figure it out and i have 3 questions like this but now i get it! so 1000000000 times thanks... again!

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spraguer (Moderator)
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