Question

the value of x2 -5 at x = -1 is​

Answer 1

Answer:

-7

Step-by-step explanation:

When x = -1

$x2 - 5 \\ = ( - 1) \times 2 - 5 \\ = - 2 - 5 \\ = - 7$

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Very simple

Answer 2

Given:

${x}^{2} - 5$

Value:

$x = - 1$

To Find:

The value of ${x}^{2} - 5$

Explanation:

By putting the value of x, we get

${( - 1)}^{2} - 5$

$= 1 - 5$

$= - 4$