complete the following to the solve equations 5x²+13+8=0 using formula​

Question

complete the following to the solve equations 5x²+13+8=0 using formula​

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Ayla 2 days 2021-11-25T20:33:58+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-11-25T20:35:42+00:00

    Step-by-step explanation:

    5x²+21=0

    5x²= -21

    5x² =-21/5

    x²= -42

    x*x=-42

    2x = -42

    x = – 42/2

    x= -21

    0
    2021-11-25T20:35:43+00:00

    Answer:

    -4.2

    Step-by-step explanation:

    5x^2 + 13 + 8 = 0

    => 5x^2 + 21 = 0

    => 5x^2 = -21

    => x^2 = -21/5 = -4.2

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