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    Hi, really stuck here and if anyone could help me it would be highly appreciated.

    I need to know how:

    1/2sqrtB + 1/2sqrtG = 8

    becomes:

    B = (16-sqrtG)^2

    have been trying for hours.

    Thanks
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    Multiply both sides by 2 so you get
    \sqrt B + \sqrt G = 16

    Then minus root G
    \sqrt B = 16 - \sqrt G

    Square both sides
    B = {16}^2 - {\sqrt G}^2

    Then simplify
    B = {(16 - \sqrt G)}^2
 
 
 
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