Răspuns :

Mireagabriela27id

Răspuns:

ex 16

a)5⁴⁷:25¹⁵

5⁴⁷:5³⁰

5¹⁷

b) 49¹⁹:7²⁰

7³⁸:7²⁰

7¹⁸

c)9¹⁰/27¹³

3²⁰/3³⁹

1/3¹⁹

d)16¹⁰/8¹⁷

2⁴⁰/2⁵¹

1/2¹¹

1/2048

ex 17

este b

ex 18

ex 19

direct dezolvarea

a) (1+2²)×3³¹:5

(1+4)×2³¹:5

(1+4)×2³¹:5

5×2³¹

1×2³¹

2³¹

b)(3²-1)×3²¹:8

(9-1)×3²¹:8

8×3²¹:8

1×3²¹

3²¹

c)(2⁵⁰-2⁴⁷):7

(2³-1)×2⁴⁷:7

(8-1)×2⁴⁷:7

7×2⁴⁷:7

1×2⁴⁷

2⁴⁷

d)(7²+1)×7⁴³:5

(49+1)×7⁴³:5

50×7⁴³:5

10×7⁴³

ex 20

Nu stiu

ex 21

nu stiu

ex 22

a)2n×5n+¹×2n+¹×5n

(5-2)×2n×5

3×2n×5n

3×10n

b)2n×3n+¹+2n+2×3n

(3+2²)×2n×3n

(3+4)×2n×3n

7×2n×3n

7×6n

ex23

Nu stiuuu

COROANĂ?

sper ca te-am ajutat!!!

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