The value of x2 – 5 at x= -1 is- I. -2 II. -1 III. -4 IV. -5

Question

The value of x2 – 5 at x= -1 is- I. -2 II. -1 III. -4 IV. -5

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Athena 2 days 2021-10-11T11:26:55+00:00 2 Answers 0 views 0

Answers ( )

  1. Ava
    0
    2021-10-11T11:27:55+00:00

    Answer:

    III. -4

    Step-by-step explanation:

    Given that x =-1

    Then value of x²-5 will be

    (-1)²-5

    -1×-1-5

    1-5

    -4

  2. Ava
    0
    2021-10-11T11:28:02+00:00

    Answer:

    Option (iii)  -4

    Explanation:

    x = -1\\\\

    putting the value of x in

    x^{2} - 5\\\\

    = (-1)^{2} -5\\\\= 1 - 5\\\\= -4

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