Question

va rog sa ma ajutati!!ex. Marcate

Answer 1

17.

75 = 2⁶ + 2³ +2¹ +2⁰ = 64 + 8 +2 +1 =75

54 = 2⁵ +  2⁴ + 2² +2¹ =32 + 16 + 4 + 2 =54

25 = 2⁴ + 2³ + 2⁰ = 16 + 8 + 1

33 = 2⁵+  2⁰ = 32 + 1

124 =  2⁶ + 2⁵ +2⁴+2³ +2² = 64 +32 + 16 + 8 +4

19.

a) 7ˣ⁺¹-2·7ˣ = 35

7ˣ·7¹ - 2·7ˣ=35

7ˣ(7-2) = 35

7ˣ·5 = 7·5

7ˣ= 7

x = 1

19.

a)7ˣ·5 = 7·5

7ˣ= 7

x = 1

b) 6ˣ⁺¹-3·6ˣ = 108

6ˣ·6¹ - 3·6ˣ= 108

6ˣ·(6 - 3) = 108

6ˣ·(6 - 3) = 6 · 18

6ˣ· 3 = 6 · 18

6ˣ = 36

6ˣ = 6²

x = 2

20.

a) ( 4 + 4²) : 2² - 59⁰ +1 ²⁰¹⁵ =

4¹⁺² :2²  -1 + 1 =

2²ˣ³ :2² =

2⁶⁻² = 2⁴ = 16

b)( 14²⁵-14²⁴) : 14²³ -159⁰ + 1 ²⁰¹⁷ =

14²⁵⁻²⁴ :14²³ - 1 + 1 =

14¹ :14²³ =

14¹⁻²³ = 14⁻²²

Answer 2

275=2^6+2^3+2^2+2^1+2^0=64+8+2+1
54=2^5+2^4+2^2+2^1=32+16+4+2
25=2^4+2^3+2^0=16+8+1
33=2^5+2^0=32+1
124=2^6+2^5+2^4+2^3+2^2=64+32+16+8+4
Cam atât te-am putut ajuta!