Question

СОКРАТИТЕ ДРОБЬ:
5а^2+19a-4
__________
1-25a^2

Answer 1

5(a-1/5)(a+4) (5a-1)(a+4). -(1+5a)(a+4)
-------------------- = ------------------- =. --------------------- =.
(1-5a)(1+5a). (1-5a)(1+5a). (1-5a)(1+5a).
4-a
= ----------
(1-5a)