Answer:
[tex]-\frac{26}{7a}[/tex]
Step-by-step explanation:
[tex]-\frac{13}{14}, -\frac{4}{a}[/tex]
Compute an expression comprimised of factors that appear either in [tex]-\frac{13}{14}[/tex] or [tex]-\frac{4}{a}[/tex]
[tex]=-\frac{26}{7a}[/tex]
