Question

Find the value of: x2 – 1/5 at x= -1.​

Answer 1

Answer:

x^2-1/5

x=-1

(-1)^2-1/5

1-1/5

1-0.2

0.8

Step-by-step explanation:

Hope it helps :)

Answer 2

Answer:

Hence value of the expression will be 4/5 or 0.8

Step-by-step explanation:

In context to questions asked

We have to determine the value of

${x}^{2} - \frac{1}{5}$

when value of x.is -1

So, for determining the value of expression we will put the value of x given in the questions in above expression

Thus we will get

As we know that

when negative sign is multiplied by negative sign the product will be a positive number

Thus we will get

${x}^{2} - \frac{1}{5} \\ = > ( { - 1})^{2} - \frac{1}{5} \\ = > 1 - \frac{1}{5} \\ = > \frac{5 - 1}{5} \\ = > \frac{4}{5} \\ = > 0.8$