Question

resolva as operações com multiplicações
a) ✔2.✔4.✔8

b)✔225.✔15

c)✔75.✔4.✔256

d)✔8.✔16
com contas por favor gente

Answer 1

Ola Gigi

a) √2*√4*√8 = √64 = 8

b) √225*√15 = 15√15 

c) √75*√4*√256 = √(3*25*1024 = 160√3

d) √8*√16 = 8√2 

Answer 2

$a) \\ \sqrt{2} . \sqrt{4} . \sqrt{8} = 2^{ \frac{1}{2} } . \sqrt{2^2} . \sqrt{2^3} =2^{ \frac{1}{2} } . 2 . \sqrt{2^2.2} =2^{ \frac{1}{2} } . 2 .2 \sqrt{2}=2^{ \frac{1}{2} } . 2 .2. 2^{ \frac{1}{2} }$=$2^({ \frac{1}{2}+1+1+ \frac{1}{2} })= 2^{ \frac{6}{2} } =2^3=8$

$b) \\ \sqrt{225} . \sqrt{15} = \sqrt{3^2.5^2} . \sqrt{15} =15 \sqrt{15}  [tex]c) \sqrt{75} . \sqrt{4} . \sqrt{256} = \sqrt{3.5^2} \sqrt{2^2} . \sqrt{2^8} =5 \sqrt{3} .2.2^4=160 \sqrt{3}$

$d) \\ \sqrt{8} . \sqrt{16} = \sqrt{2^3} . \sqrt{2^4} =2 \sqrt{2} .2^2=2 \sqrt{2} .4=8 \sqrt{2}$