Question

Va rog,este pentru o mărire de nota.. Este urgent.. D au si coroana, dar sa fie corecte ​

Answer 1

Răspuns:

exercițiu 14

a) (3³•13+13²):2³=

3³=3•3•3=9•3=27

13²=13•13=169

2³=2•2•2=4•2=8

(27•13+169):8=(351+169):8=520:8=65

b)(5³•25-25²):5²=

5³=5•5•5=125

25²=25•25=625

5²=5•5=25

(125•25-625):25=(3125-625):25=2500:25=100

c) (7²•31+31²):2⁴=

7²=7•7=49

31²=31•31=961

2⁴=2•2•2•2=16

(49•31+961):16=(1519+961):16=2480:16=155

d) (26²+2⁶•26):3²=

26²=26•26=676

2⁶=2•2•2•2•2•2=64

3²=3•3=9

(676+64•26):9=(676+1664):9=2340:9=260

e) (18²+6²•18):3³=

18²=18•18=324

6²=6•6=36

3³=3•3•3=27

(324+36•18):27=(324+648):27=972:27=13,5

f) (11²+4³•11):5²=

11²=11•11=121

4³=4•4•4=64

5²=5•5=25

(121+64•11):25=(121+704):25=825:25=13

vrei rezolvarea la toate exercițiile?