What is the value of. {4x} - {2} \: \: \: if \: \: x \: = 2pls help

Question

What is the value of.
`{4x} - {2} \: \: \: if \: \: x \: = 2`pls help

Answer 1

4x^2- x

Replace x by 5 and solve

4 (5)^2 - 5

4 (25) - 5

100 - 5

95