1. hasil dari [tex]\frac{12}{(x-3)(x+3)}: \frac{3}{x+3} [/tex] adalah a. [tex]\frac{4}{x-3} [/tex] b. [tex]\frac{4}{x+3} [/tex] c. [tex]\frac{4}{(x-3)(x+3)} [/t

[tex] \frac{12}{(x - 3)(x + 3)} \div \frac{3}{(x + 3)} \\ = \frac{12}{(x - 3)(x + 3)} \times \frac{(x + 3)}{3} [/tex]
(x + 3) dicoret karena sama
lalu 12 : 3 = 4
maka sisanya

[tex] \frac{4}{x - 3} [/tex]
A