Question

Ajutor?=)) nu imi dau seama cum se rezolva :/
4x-1/(2*sqrt(x))=0

Answer 1

$4x-\frac{1}{2\sqrt{x}}=0\\ \\ 4x-\frac{\sqrt{x}}{2x}=0\\ \\ \frac{8x^2-\sqrt{x}}{2x}=0\\ \\ Deoarece~2x\neq 0~avem~ca~x\neq 0.\\ \\ 8x^2=\sqrt{x} |^2\\\\ 64x^4=x\\ \\ Daca~impartim~prin~x,~x\neq 0,~avem~ca:\\ x^3=\frac{1}{64} \\ \\Rezultat~final~:~x=\frac{1}{4} .$