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Math Help - Solving equations

  1. #1
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    Solving equations

    I would appreciate any help with the following problem.
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  2. #2
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    Hello, pashah!

    y - 1 \:= \:\sqrt{\frac{y+1}{4}}

    Square both sides: . (y-1)^2\:=\:\frac{y+1}{4}

    We have: . y^2 - 2y + 1 \:= \:\frac{y+1}{4}

    Multiply by 4: . 4y^2 - 8y + 4\:=\:y + 1\quad\Rightarrow\quad 4y^2 - 9y + 3 \:= \:0

    Now use the Quadratic Formula . . .

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