Step-by-step explanation:
a) x = - 4 makes the denominator zero.
denominator = x + 4 = - 4+4= 0
b)
[tex] \frac{3}{x + 4} + 2 = \frac{13}{x + 4} \\ \\ \therefore \: \frac{3+ 2x + 8}{x + 4 } = \frac{13}{x + 4} \\ \\ \therefore \: 2x + 11 = 13 \\ \\ \therefore \: 2x = 13 - 11 \\ \\ \therefore \: 2x = 2 \\ \\ \therefore \: x = \frac{2}{2} \\ \\ \therefore \: x = 1 \\ \therefore \: solution \: set = \{1 \} \\ [/tex]
Thus option A is correct answer.
