Answer:
B. {3/4,0}
Step-by-step explanation:
[tex]x(4x - 3) = 0 \\ x = 0 \: \: or \: \: 4x - 3 = 0 \\ x = 0 \: \: or \: \: x = \frac{3}{4} \\ x = \bigg\{ \frac{3}{4}, \: \: 0 \bigg\}[/tex]
