Răspunsuri

2014-07-03T14:28:05+03:00
x√(1-√2)² + x√(4-3√2)² -x√(7-5√2)² - |2-3|x = x(1-√2)+x(4-3√2)-x(7-5√2)-x(7-5√2) - |2-3|x =
= x(1-√2)+ x(4-3√2)-x(7-5√2)-x= x-x√2+4x-3x√2-7x+5x√2-x= x√2-3x= x( √2-3)