Question

Simplifique a expressão √20+√45−√80

Answer 1

Oie, Td Bom?!

$= \sqrt{20} + \sqrt{45} - \sqrt{80}$

$= 2 \sqrt{5} + 3 \sqrt{5} - 4 \sqrt{5}$

$= (2 + 3 - 4) \sqrt{5}$

$= (5 - 4) \sqrt{5}$

$= 1 \sqrt{5}$

$= \sqrt{5}$

Att. Makaveli1996