4х⁴у⁵z³×(-5z⁴y⁵х⁶)×
(5a⁷b⁴с⁴)÷(-9а⁵b²с³)= -20x¹⁰y¹⁰z⁷×(5a⁷b⁴с⁴)/(-9a⁵b²c³)=100x¹⁰y¹⁰z⁷/9a²b²c
ответ:100x¹⁰y¹⁰z⁷/9a²b²c
4х⁴у⁵z³×(-5z⁴y⁵х⁶)×
(5a⁷b⁴с⁴)÷(-9а⁵b²с³)= -20x¹⁰y¹⁰z⁷×(5a⁷b⁴с⁴)/(-9a⁵b²c³)=100x¹⁰y¹⁰z⁷/9a²b²c
ответ:100x¹⁰y¹⁰z⁷/9a²b²c