Question

va rog a+(a radical din 3)=4

Answer 1

Răspuns:

$a+a\sqrt{3} = 4$

$a^{2} +3a^{2} =16\\4a^{2} =16\\a^{2} =4\\a=\sqrt{4}\\ \left \{ {{a=+2} \atop {a=-2}} \right.$