Question

Simplify the following expression.

(4x + 1)(x - 4)
A.
4x2 - 15x - 5
B.
4x2 + 15x - 4
C.
4x2 - 15x - 4
D.
4x2 - 17x - 4

Answer 1

Answer:

$(4x + 1)(x - 4) = 4x( x - 4) + 1(x-4)$

                       $=4x^2 -16x +x -4\\=4x^2 -15x -4$

option C