Question

if x = –1,find the value:

(a) -x - x²+x-1​

Answer 1

Answer:  -3

Step-by-step explanation:

-(-1)-(-1)^2+(-1)-1 = 1-1-1-1 = -3

Answer 2

-x - x² + x - 1

x = -1

-(-1) - (-1)² + (-1) - 1

+1 -(1) -1 -1

+1 -1 -1 -1

0 -2

-2