Answer:
C - 4x^2 - 21x - 18
Step-by-step explanation:
(x - 6)(4x + 3)
To solve this
Let's use (x - 6) to open the brackets
x ( 4x + 3) -6(4x + 3)
Lets open the brackets
x * 4x = 4x^2
x * 3 = 3x
-6 * 4x = -24x
-6 * +3 = -18
4x^2 + 3x -24x - 18
Solve those figures with the variable x ie +3x - 24x = -21x
= 4x^2 - 21x - 18
