Question

Scrie ca putere:
a)2⁹×2¹¹
b)5³×5¹²
c)7¹⁹:7¹¹
d)3²³:3¹²
e)(2⁹)¹¹
f)(5³)⁷
g)2⁹×3⁹
h)7¹²×2¹²
i)12⁹×4⁹
j)24¹¹×8¹¹

Answer 1

a) 2⁹×2¹¹ = 2⁹⁺¹¹ = 2²⁰

b) 5³×5¹² = 5¹⁵

c) 7¹⁹:7¹¹ = 7¹⁹⁻¹¹ = 7⁸

d) 3²³:3¹² = 3¹¹

e) (2⁹)¹¹ = 2⁹ˣ¹¹ = 2⁹⁹

f) (5³)⁷ = 5²¹

g) 2⁹×3⁹ = (2×3)⁹ = 6⁹

h) 7¹²×2¹² = 14¹²

i) 12⁹×4⁹ = 48⁹

j) 24¹¹×8¹¹ = 280¹¹

Answer 2

Răspuns:

Explicație pas cu pas:

a)   2⁹ × 2¹¹  = 2⁽⁹⁺¹¹⁾ = 2²⁰

b)   5³ × 5¹²  = 5⁽³⁺¹²⁾  = 5¹⁵

c)   7¹⁹ : 7¹¹  = 7⁽¹⁹⁻¹¹⁾ = 7⁸

d)   3²³ : 3¹²  = 3⁽²³⁻¹²⁾ = 3¹¹

e)   (2⁹)¹¹  = 2⁹ˣ¹¹ = 2⁹⁹

f)    (5³)⁷  = 5³ˣ⁷ = 5²¹

g)   2⁹ × 3⁹  = ( 2 x 3)⁹ = 6⁹

h)   7¹²×2¹²  = ( 7 x 2)¹² = 14¹²

i)   12⁹ × 4⁹  = ( 12 x 4 )⁹ = 48⁹

j)   24¹¹ × 8¹¹ = ( 24 x 8 )¹¹ = 192¹¹