(sqrt(2x+3)+sqrt(x-2))^2=4^2 2x+3+2sqrt(2x+3)(x-2)+x-2=16 2sqrt(2x+3)(x-2)=16-2x-3-x+2 (2sqrt(2x+3)(x-2))^2=(-3x+15)^2 4(2x+3)(x-2)=9x^2-270x+225 4(2x^2-4x+3x-6)-9x^2+270x-225=0 8x^2-4x-24-9x^2+270x-225=0 -x^2+266x-249=0 x^2-266+249=0 д=264 x=(266-+264)/2=265; 1