A quadratic polynomial which has zeros at -7 and 5. ?

Question

A quadratic polynomial which has zeros at -7 and 5. ?

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Minh Khuê 4 years 2021-07-24T22:26:36+00:00 1 Answers 9 views 0

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  1. diemkieu
    0
    2021-07-24T22:28:34+00:00
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    Answer:

    x^2 + 2x – 35

    Step-by-step explanation:

    Sum of zeros

    = – 7 + 5

    = – 2

    Product of zeros

    = – 7 x 5

    = – 35

    x^2 – ( sum of zeros )x + product of zeros

    = x^2 – ( – 2 ) x + ( – 35 )

    = x^2 + 2x – 35

    The Quadratic polynomial is x^2 + 2x – 35.

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