Question

Сократи дробь.
х^2+18x+80/10x+100

Answer 1

(х²+18х+80)/(10х+100)=(х+8)(х+10)/10(х+10)=(х+8)/10
х²+18х+80
х1+х2=-18 и х1*х2=80⇒х1=-8 и х2=-10