Question

2,5x•(x-12)=6•(x-10)-x​

Answer 1

Объяснение:

2.5x² - 30x = 6x -60 -x

2.5x² -35x +60=0

x²-14x +24=0

D= 196-96= 100

x=(14+10):2= 12

x= (14-10):2= 2