Oblicz. Proszę o rozwinięcie, a nie same odpowiedzi.
a) -(-(-4))*[8-(-5)*(-2)+(-4)*7]:[-(-4)+11]
b)-(-(-(-5)))+(-4)*(8-12)-(-(-3))*(-12):(-(-6))
c)-[-(-10+17)-8]:[-4+3*(-5)*(-2):10-2]+(-7)
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a) -(-(-4))*[8-(-5)*(-2)+(-4)*7]:[-(-4)+11]=
-4*(8-10-28):(4+11)=
-4*(-30):15=
-4*(-2)+ -(-8)= 8
b) -(-(-(-5)))+(-4)*(8-12)-(-(-3))*(-12):(-(-6))=
-(-5)+(-4)*(-4)-3*(-12):6=
5+16-3*(-2)=
5+16-(-6)=
5+16+6= 27
c) -[-(-10+17)-8]:[-4+3*(-5)*(-2):10-2]+(-7)=
-(-7-8):(-4+3*10:10-2)-7=
-(-15):(-4+3*1-2)-7=
-(-15):(-3)= -5