Question

4x+x-2x^2+x-1 when x=-1

Answer 1

4x+x+2x^2 +x-1

putting the value of x i.e -1

4(-1) +(-1) - 2(-1)^2 + (-1) -1

-4 -1 -2 -1-1

-5 - 2 -2

- 5 - 4

-9

 i hope this will help you

-by ABHAY