Question

4x²-4ax+(a²+b²)=0 solve by factorization method

Answer 1

this is equivalent to 

a^2 + (2x)^2 - 2(a)(2x) + b^2 = 0

(a -2x)^2 + b^2 = 0

which means, 
either b= 0, and a-2x = 0 >> x= a/2

hope it helped :)