Question

Sa se calculeze ec. Irationala Radical din x+1=5-x

Answer 1

radical din (x+1)= 5-x /ridicam la patrat\
(x+1)= 25- 10x+ x^2
11x= 24+x^2
24- 2*x*(11/2)+x^2=0
(x-11/2)^2+37/11=0
(x-11/2)^2=-37/11
(x-11/2)^2 >= 0 => x nu are sol in R