Question

the value of the polynomial x2 -x -1 at x=-1 is _. -3,1,-1,0 what is answer​

Answer 1

Answer:

x² - x - 1

(-1)² - (-1) - 1

1 + 1 - 1

2 - 1

1.

Answer 2

Step-by-step explanation:

x2-x-1

=

${x}^{2} - x - 1 \\ = ( { - 1}^{2} ) - ( - 1) - 1 \\ = 1 + 1 - 1 \\ = 2 - 1 \\ = 1$