Question

Cum rationalizez $\frac{5}{3-2 \sqrt{2} }$ ?

Answer 1

5/3-2√2=5(3+2√2)/3²-(2√2)²=5(3+2√2)/9-8=5(3+2√2)/1=5(3+2√2)

Answer 2

 [tex] Conjugata\; lui\;3-2\sqrt2 \;este\;3+2\sqrt2\;!\\ \Rightarrow\;\frac{^{3+2\sqrt2)}5}{3-2\sqrt2}=\\ =\frac{5*(3+2\sqrt2)}{(3+2\sqrt2)(3-2\sqrt2)}=\frac{5(3+2\sqrt2)}{3^2-4*2}= ...[/tex]