Question

(x-3) (x+4)-2(3x-2)=(x-4) la patrat

Answer 1

$(x-3)(x+4)-2(3x-2)=(x-4) ^{2} \\ x^{2} +4x-3x-12-6x+4= x^{2} -8x+16 \\ x^{2} -5x-8= x^{2} -8x+16 \\ x^{2} -5x- x^{2} +8x=16+8 \\ 3x=24 \Rightarrow \boxed{x=8}. \\ \\ Solutie:~\boxed{x=8}.$