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25 February, 17:09

What value of b makes the trinomial below a perfect square x2 - bx + 16

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  1. 25 February, 17:59
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    A perfect square is when a trinomial can be factored into a binomial multiplied by itself right? If that's the case then I think b=8

    x^2-8x+16

    x^2-2*x*4+4^2

    (x-4) ^2
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