Question

hi how to solve this​

Answer 1

Answer:

0

Step-by-step explanation:

Given

polynomial = 2x^2-x-1

the value of x is - 1/2

By substituting the value of x in the given polynomial

we get

= 2(-1/2)^2-(-1/2)-1

= 2(1/4)+1/2-1

= 1/2+1/2-1

= 2/2-1

= 1-1

= 0

Hope this helpful to you