Find the discriminant. (Must Show Work) -9m^2+m-7=0

Question

Find the discriminant. (Must Show Work)

-9m^2+m-7=0

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Helga 3 years 2021-08-03T20:36:43+00:00 1 Answers 7 views 0

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  1. Edana
    0
    2021-08-03T20:38:30+00:00
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    Answer:

    -251

    Step-by-step explanation:

    the discriminant .b^2-4ac

    =1-4×(-9)×(-7)

    =1-252=-251

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