Question

1.Solutia rationala a ecuatiei x -2 supra3=1 supra 2-x

2.Media aritmetica a nr.radical din 2+1  si 1 supra( radical +1)

Answer 1

1.da este egala 
la al doilea nustiu

Answer 2

$\frac{x-2}{3} = \frac{1}{2} -x$
2x-4=3-3x
5x=7
x=$\frac{7}{5}$
2.

Ma=(√2+1+$\frac{1}{ \sqrt{2}+1 }$):2
rationalizam cu √2-1
(√2+1+√2-1):2=2√2:2=√2