Question

(x-5)3x^2=3x(5-x) помогите срочно!!!

Answer 1

(x-5)3x^2=3x(5-x)
(x-5)3x^2+3x(x-5)=0
3x(x-5)(x+1)=0
x=0
x=5
x=-1

Answer 2

(x-5)3x²=3x(5-x) 
(x-5)3x²-3x(5-x)=0
 (x-5)3x²+3x(х-5) =0
(х-5)(3х²+3х)=0
(х-5)3х(х+1)=0
3х(х-5)(х+1)=0
3х=0 или х-5=0 или х+1=0
х=0          х=5         х=-1