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חזקות ושורשים 3 - EXTRA

3

נתון כי x -ו a הם מספרים חיוביים

1. a x x

; ? x 

;

 

3 4 a

2 a

a

a

(4)

(3)

(2)

(1)

2. x ba 2   ? b a 5 2  

(4) b x 2 

(3) b ax 3  

2 x

(2) bax  

(1)

2

3. 8 2 x x

? x 

  

2

(4) 0

(3) 4

(2) 2

(1)

3

4. 3 27 a a

? a 

  

33

3

9

3

(4)

(3)

(2)

(1)

x 64

? x 

x

5.

2

(4) 10

(3) 0

(2) 4

(1)

6. ? 25 81 4 2   (1)

(4) 7 6 5 3 

(3) 6 4 5 9 

(2) 7 3 5 9 

8 15

3

7. ? 52 2 2  

(4) 20

(3) 22

(2) 26

(1) 10

8. x 5 x 3 2 6 

? x 

(4) 0

(3) 2

(2) 2

(1) 1

x x 4

9. 3 27

? x 

33

2

(4) 1

(3)

(2) 3

(1)

x

11. 1x2 24 8   

? x 

(4) 4

(3) 3

(2) 2

(1) 1

11. 3 27 9 x

x

? x 

(4) 3

(3) 2

(2) 1

(1) 6

EXTRA

210

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