Which equation represents a quadratic function with a leading coefficient of 2 and a constant term of –3?

Question

Which equation represents a quadratic function with a leading coefficient of 2 and a constant term of –3?

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Sigridomena 3 years 2021-08-14T19:40:26+00:00 1 Answers 51 views 0

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    2021-08-14T19:41:45+00:00

    Answer:

    2x^{2} +bx-3=0

    Step-by-step explanation:

    General form. A quadratic function f(x) is of the form (ax^2+bx+c) where a,b,c ∈ R or C and a0.

    We obtain an equation when f(x)=0

    ax^{2} +bx+c=0 is an quadratic equation.

    Solution.

    Given, a=2,c=-3, but b is not given

    Thus the quadratic function with leading coefficient a=2 and constant term c=-3 is given by

    f(x)=2x^{2} +bx-3

    ∴ the required quadratic equation is

    2x^{2} +bx-3=0

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