Question

vă rog mult, e urgent!!!​

Answer 1

Răspuns:

a)[l-3²+(-3)³l-(-3)+(-2)•(5-7)]=0

1)-3²+(-3)³=-9+(-27)=-36

2)5-7=-2

3)-2•(-2)=4

4)-36-(-3)=-36+3=-33

5)-33+(-33)=0

b){(-2)•[(-2)³+5]:2-(4-8)}•(-2)+l6-(-2)³=0

1)(-2)³+5=-8+5=-3

2)-2•(-3)=6

3)6:2=3

4)4-8=-4

5)3-(-4)=7

6)6-(-2)³=6+8=14

7)7•(-2)=-14

8)-14+14=0