Both roots of x^2 + Nx + 144 are equal to each other. Find all the possible values of N.

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Both roots of x^2 + Nx + 144 are equal to each other. Find all the possible values of N.

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Sigridomena 3 years 2021-09-05T16:20:29+00:00 1 Answers 9 views 0

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  1. giabao
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    2021-09-05T16:22:00+00:00
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    Answer:

    N=+24,-24

    Step-by-step explanation:

    Well this is a quadratic equation and we can make further deductions using it’s discriminant

    b²-4ac=0

    N²-4(1×144)=0

    N²-576=0

    N²=576

    N=√576

    N=+24,-24

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )