Question

Resolver a equação log3 x + log3 (x-2)=0

Answer 1

log3 x + log3 (x-2)=0

log3 x.(x-2) = 0

x² -2x = 3°

x² -2x -1 = 0

∆=4+4=8 => √∆=2√2

x' =2+2√2/2 = 1+√2 ✓