Question

Find the value of: x2 – 1/5 at x= -1

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Answer 1

Consider the given expression,

⇒5x2−1at x=−1

Now,

Put x=−1 in 5x2−1is,

⇒5(−1)2−1

⇒51−1

⇒0

 

Hence, this is the answer.

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Answer 2

Answer:

Consider the given expression,

⇒

5

x

2

−1

at x=−1

Now,

Put x=−1 in

5

x

2

−1

is,

⇒

5

(−1)

2

−1

⇒

5

1−1

⇒0