Question

imi puteti da raspunsurile va rog
cu tot cu rezolvare​

Answer 1

Răspuns:

1. a) 7·8-30:10+5=56-3+5=58

b) 4·6-3·5-12:12=24-15-1=8

c) 70-(30-12)+14=70-18+4=56

2. Xn=2n+1

X3=2·3+1=7

X4=2·4+1=9

X5=2·5+1=11

3. a) 1,2·3+2,4·5=3,6+12=15,6

b) 7/2·2/3+4/6=14/6+4/6=18/6=3

c) 10/3-2/3+5/3=7/3+5/3=12/3=4

d) 4,5·3,5+2,7·1,3=15,75+3,51=19,26

Explicație pas cu pas: