Find the value of the following expressions, when x = –1:

2x² – x – 2

Dear Student

From the question it is given that x = -1
Then, substitute the value of x in the question
= (2 × (-1)²)–(-1)–2
= (2 × 1) + 1–2
= 2 + 1–2
= 3–2
= 1

Thanks