Question

what is the product of (2x-1)(x+4)

Answer 1

(2x-1)(x+4)
=2x*x+2x*4-1*x-1*4
$= 2x {}^{2} + 8x - x - 4$
$= 2x {}^{2} + 7x - 4$
Hope this helps :)

Answer 2

$2x {}^{2} + 8x - x - 4 \\ 2x {}^{2} + 7x - 4$
hope it will be helpful to you