Question

Urgeeeeeent!Dau coroană ! Calculati:a)-(-5)-|3-8|÷(|-3|-|-8|)
b)-(+9)-|20-12|÷(|-7+10|-|-1|
c)[(-3)^4*(-3)^4*(-3)^30+(-3)^38+(-7)^124÷(-7)^55+(7)^69-4*8]*45^0

Answer 1

a)-(-5)-|3-8|÷(|-3|-|-8|)=
=-(-5)-|-5|÷(3-8)=
=+5-5÷(-5)=
=5+1=6

b)-(+9)-|20-12|÷(|-7+10|-|-1|)=
=-9-(8)÷((3)-(+1))=
=-9-4=
=-13

c)[(-3^4)*(-3)^4*(-3)^30+(-3)^38+(-7)^124:(-7)^55+(7^3)^23-4*8]*45^0=
=[(-3^4)*(+3)^4*(+3)^30+(+3)^38+(+7)^124:(-7)^55+(7^69)-32]*1=
=[(-3^38)+(+3)^38+(-7)^69+7^69-32]*1=
=(0+0-32)*1=-32