Question

Calculati:a.(4+3)³-(4-3)¹⁰;b.(10³-125×2³):123¹²³;c.[(10³:5²:8+3²×5²):3⁰]×2²^⁰;d.{[(12²+5²):13]²-2⁷-2⁰}:2³
DAU COROANA!​

Answer 1

Răspuns:

a) 342

b) 0

c) 460

d) 5

Explicație pas cu pas:

a.(4+3)³-(4-3)¹⁰ =

= 7³ - 1¹⁰ = 343 - 1 = 342

b.(10³-125×2³):123¹²³

= (1000 - 125×8) : 123¹²³ = (1000 - 1000) : 123¹²³ = 0 : 123¹²³ = 0

c.[(10³:5²:8+3²×5²):3⁰]×2²^⁰ =

= [(2³·5³:5²:2³+15²):1]×2¹

= (5+225)×2

= 230×2

= 460

d.{[(12²+5²):13]²-2⁷-2⁰}:2³ =

= {[(144+25):13]²-128 - 1}:8

= [(169:13)² - 129]:8

= (13² - 129):8

= (169 - 129):8

= 40:8

= 5