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16 January, 20:56

What value of b makes the polynomial x2+bc+16 a perfect square

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  1. 16 January, 23:06
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    For a perfect square

    b² = 4*a*c

    Comparing ax² + bx + c = 0 to x² + bx + 16

    a = 1, c = 16

    b² = 4*a*c

    b² = 4*1*16

    b² = 64

    b = √64

    b = 8

    The value of b = 8.
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