Question

Calculati:
a)23-[(-3)+(+5)-(-7)]-(-11)=
b)5-2•[(-12):3]²+[(-2)³]²=
ATENTIE VREAU REZOLVAREA COMPLETA!

Answer 1

a) (-3)+(+5)-(-7)=(-3)-5+7=(-8)+7= -1     23-(-1)-(-1)=23+1+1=25 Rasp final 25

Answer 2

$a).23-[(-3)+(+5)-(-7)]-(-11) = \\ =23-[2-(-7)]-(-11)= \\ =23-9-(-11)= \\ =14-(-11)= \\ =25 \\ b).5-2 \cdot [(-12):3]^2+[(-2)^3]^2= \\ =5-2 \cdot (-4)^2+(-8)^2= \\ =5-2 \cdot 16 +64= \\ =5-32+64= \\ =-27+64= \\ =37$