Question

срочноо!!

5a-a^2/5+34a-7a^2

Answer 1

$\frac{5a-a ^{2} }{5+34a-7 a^{2} } = \frac{a(5-a)}{-7(a+ \frac{1}{7})(a-5) } = \frac{a}{7a+1}$