Question

Resolva a equação a²x² + abx - 2b² = 0 na incógnita x?

Answer 1

Olá Joslvania
(ax-b).(ax+2b) => a²x²+2abx-abx-2b² => a²x²+abx-2b² =0 ok
(ax-b).(ax+2b)=0
ax-b=0 => ax=b => x'=b/a
ax+2b=0 => ax=-2b => x''=-2b/a