Question

Ex 17 doar rasp dau coroana

Answer 1

Răspuns:

a) (4+3)³-(4-3)¹⁰ =

7³-1=

343-1=

342

b) ( 10 ³- 125×2³ ):123¹²³=

( 10 ³-5³×2³ ):123¹²³=

(10³-10³):123¹²³=

0:123¹²³=

0

c) [(10³ : 5² : 8 + 3²×5² ):3⁰]×2²ˣ⁰=

[(5 + 3²×5² ):1]×2¹=

[5×(1+3²×5):1]:2=

[5×(1+9×5):1] :2=

(5×46):2=

112

d){[(12 ²+ 5²):13] ²-2⁷-2⁰}:2³=

{[(144+25):13] ²-128-1}:8=

[ (169:13)²-128-1]: 8=

(13²-128-1):8 =

(169-128-1):8=

40:8=

5