Question

[16+(36:4)x10]:2=33
64:2+[130-(18-6)x(32+8)]=82
[68+(89-45)x8]:4=105
[(286-154):2+(83+17)x2]-105:3=231
Trebuie sa justific care din exercitii dupa indepartarea parantezelor drepte va modifica rezultatul obtinut si care nu isi modifica rezultatul. Va multumesc!

Answer 1

[68+(89-45)x8]:4=105[16+(36:4)x10]:2=33
(16+9x10):2=33
(16+90):2=33
106:2=33
53=33

64:2+[130-(18-6)x(32+8)]=82
64:2+(130-12x40)=82
64:2+(130-480)=82
32+350=82
382=82


[68+(89-45)x8]:4=105
(68+44x8):4=105
(68+352):4=105
420:4=105
105=105


[(286-154):2+(83+17)x2]-105:3=231
(132:2+100x2)-105:3=231
(66+200)-35=231
266-35=231
231=231