Question

help
35 ballov za otvet

Answer 1

$(x-1)^2+3x=4x(x-1)\\\\\\x^2-2x+1+3x=4x^2-4x\\\\\\x^2-2x+1+3x-4x^2+4x=0\\\\\\\boxed{-3x^2+5x+1=0}\\\\\\\boxed{a=-3\qquad b=5\qquad c=1}$