Question

Rezolvati in IN:
2-x=0
$\frac{3}{5} x-1 \frac{1}{5} =0$
$\sqrt{5x} - \sqrt{80} =0$

Answer 1

$2-x=0 =>x=2$
$\dfrac{3}{5}x-1 \dfrac{1}{5} =0=>3x-6=0=>3x=6, x=2$
$\sqrt{5}x - \sqrt{80} =0=> \sqrt{5}x= \sqrt{5*16} =>x= \sqrt{16} , x=4$