Question

the value of the polynomial x square - x- 1 at x=-1​

Answer 1

Answer:

$Given \: polynomial \:, g(x), \: is:\\x^2-x-1\\for \: x=-1,\\g(-1)= (-1)^2-(-1)-1\\= 1+1-1\\=1\\\\\\Answer:\\1$

:D

Answer 2

TO FIND:

• The Value of polynomial x²-x-1 at x = -1.

ANSWER:

Given:

• A polynomial is given to us.
• The polynomial is x²-x-1 .

Let us denote the polynomial by p(x)

Now ,

$\sf{\leadsto p(x) = x^2-x-1}$

$\sf{\leadsto p(-1) = (-1)^2-(-1)-1}$

$\sf{\leadsto p(-1) = 1+1-1}$

$\red{\bf{\mapsto p(-1)=1}}$

Hence the required answer is 1.

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