Question

If x= -1 Find the value of 2x²-x-2
please find the answer​

Answer 1

$If \: x= -1 \\ \: Find \: the \: value \: of \: 2x²-x-2 \\ solution. \\ f(x) = 2 {x}^{2} - x - 2 \\ f( - 1) = 2( { - 1})^{2} - ( - 1) - 2 \\ = 2(1) + 1 - 2 \\ = 2 + 1 - 2 \\ = 3 - 2 \\ = 1 \: \: \: \: is \: the \: answer...$

sahi hai dear..???