(5х-1)(3х-6)=0 (8/15х-4/5)х+12=0

Question

(5х-1)(3х-6)=0

(8/15х-4/5)х+12=0

Answer 1

(5x-1)(3x-6)=0

15x^2-30x-3x+6=0

15x^2-33x+6=0 :3

5x^2-11x+2=0

D=121-4*5*2=121-40=81=9^2

X1=11-9 /10 =1/5=0,2

X2=11+9 /10 =2

ответ:0.2;2