Question

(12x+1)^2+(5x-1)^2=(13x-1)^2

Answer 1

(12х+1)^2+(5x-1)^2=(13x-1)^2

144x^2+24x+1+25x^2-10x+1=169x^2-26x+1

144x^2+25x^2-169x^2+24x-10x+26x=1-1-1

40x=-1

x=-1/40