Use the FOIL method. (First, Outside, Inside, Last)
(x)(x) = x²
(x)(4) = 4x
(x)(2) = 2x
4(2) = 8
Combine like terms
x² + 4x + 2x + 8
x² + 6x + 8
x² + 6x + 8 is your answer
hope this helps
