Question

15a⁴b²-15a² Сократить Дробь __________ 45a⁴b+45a³

Answer 1

15а^4b^2-15a^2
----------------------=
45a^4b+45a^3

b
=----------
3+3a
Ответ: b/3+3a

Answer 2

$\frac{15a^4b^2-15a^2 }{45a^4b+45a^3} = \frac{15A^2(a^2b^2-1)}{45a^3(ab+1)}= \frac{(ab-1)(ab+1)}{3a(ab+1)} = \frac{ab-1}{3a}$