Question

AJUTOR!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

$a)23-[(-3)+5-(-7)]-(-11)= \\ 23-[2-(-7)]-(-11)= \\ 23-9-(-11)= \\ 14-(-11)= \\ \boxed{25} \\ \\ b)5\cdot2\cdot[(-12):3]^2+[(-2)^3]^2= \\ 10\cdot(-4)^2+(-2)^6= \\ 10\cdot16+32= \\ 160+32= \\ \boxed{192} \\ \\ c)-2-4-6-...-2000= \\ (-2)+(-4)+(-6)+...+(-2000)=$
$(-2)\cdot(1+2+3+...+1000)= \\ (-2)\cdot( \frac{1000(1000+1)}{2})= \\ (-2)\cdot500500= \\ \boxed{1001000} \\ \\ d)4563\cdot34-4563\cdot200+166\cdot4563 \\ 4563(34-200+166)= \\ 4563\cdot0= \\ \boxed0$