Question

$4 \sqrt{405}$
simplifique o racional​

Answer 1

Oie, Td Bom?!

$4 \sqrt{405} = 4 \sqrt{9 {}^{2} \times 5} = 4 \sqrt{9 {}^{2} } \sqrt{5} = 4 \times 9 \sqrt{5} = 36 \sqrt{5}$

Att. Makaveli1996