Question

calculo algébrico . mim ajudem por favor

Answer 1

1) 
$(-1)^6-(-2)^4=\\1-32=\\-31$

2)
$10^3-3.10^2.2^2.1^2=\\1000-3.100.4.1=\\1000-1200=\\-200$

3)
$5(5-1)(5-2)(5-3)=\\5.4.3.2=\\120$

4)
$A=( \frac{2}{5} )^2+ \frac{1}{5}$
$A= \frac{2^2}{5^2}+ \frac{1}{5}$
$A= \frac{4}{25}+ \frac{1}{5}$
$A= \frac{4+5}{25}$
$A= \frac{9}{25}$