Question

Va roooog ajutor dau corona ​

Answer 1

Răspuns:

[(2²×5+1)÷3+1]²- 3² ×7

[( 4×5+1) ÷3+1]²-9×7

(21÷3+1)²-63

8²-63=

64-63= 1

Answer 2

Răspuns:

[(2²×5+1):3+1²]-3²×7=55

1)2²=4

2) 4×5=20

3)20+1=21

4)21:3=7

5)1²=1

6)7+1=8

9)3²=9

10)9×7=63

11)63-8=55