Question

 Помогите решить !!!!
(х-13)^2=-52х

Answer 1

(х-13)*2=-52x
2x-26=-52x
-26=-54x
x=0.4814

Answer 2

(x-13)^2= -52x
x^2-26x+169= -52x
x^2-26x+52+169=0
x^2+26+169=0
D=676-676=0
x= -b/2a
x= -26/2= -13