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19 May, 09:35

What are the zeros of the function F of X equals X squared - 13 X - 30

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  1. 19 May, 09:51
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    Hello,

    x²-13x-30=0

    ==>x²-15x+2x-30=0

    ==>x (x-15) + 2 (x-15) = 0

    ==> (x-15) (x+2) = 0

    ==>x=15 or x=-2
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