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23 July, 19:45

What is f (x) = 8x2+4x written in vertex form

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  1. 23 July, 21:29
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    F (x) = 8 (x^2+1/2x)

    using completing the square:

    f (x) = 8 (x^2+1/2x+1/16) - (8*1/16) - - >since we added a 1/16 inside the parenthesis, we need to subtract that quantity times 8

    f (x) = 8 (x+1/4) - 1/2
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