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Solucionario completo de Aritmetica de Baldor (Por Leonardo F. Apala T.)

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SOLUCIONARIO DE ARITMETICA DE BALDOR

-15.

125 +

15 875

107

= 125 + 73

216 216

(3 1 5 + 1) 3

= 198 107

216

= ( 16

5 + 1) 3

( 16

5 ) 3

+ 3 × ( 16

5 ) 2

× 1 + 3 × 16

5 × 12 + 1 3

4 096

125 + 768

25 + 48

5 + 1

4 096 + 3 840 + 1 200 + 125

= 9 261

125

125

= 74 11

125

-16.

-17.

(2 1 3 + 2 3

3 ) = ( 7 3 + 2 3

3 )

( 7 3 ) 3

+ 3 × ( 7 3 ) 2

× 2 3 + 3 × 7 3 × (2 3 ) 2

+ ( 2 3 ) 3

343

27 + 98

9 + 28

9 + 8 27 = 126

9 + 351

27

378 + 351

= 729

27 27 = 27

(5 1 4 + 4 3 4 ) 3

= ( 21

4 + 19

4 ) 3

( 21 3

4 ) + 3 × ( 21 2

4 ) × 19

4 + 3 × 21

4

× ( 19 2

4 ) + ( 19 3

4 )

9 261

64

25 137

+ +

64

-18. (6 1 8 + 0.875)3

22 743

+ 6 859

64 64

64 000

= = 1 000

64

( 49

8 + 875

1 000 ) 3

= ( 49

8 + 7 8 ) 3

( 49

8 ) 3

+ 3 × ( 49

8 ) 2

× 7 8 + 3 × 49

8 × (7 8 ) 2

+ ( 7 8 ) 3

117 649 50 421

+

512 512 + 7 203

512 + 343

512

-19.

175 616

= 343

512

(4 1 3

2 + 1) = ( 9 3

2 + 1)

( 9 2 ) 3

+ 3 × ( 9 2 ) 2

× 1 + 3 × 9 2 × 12 + 1 3

729

8 + 243

4 + 27

2 + 1

729 + 486 + 108 + 8

8

-20. (0.02 + 1

100 )3

(0.02 + 0.01) 3

= 1 331 = 166 3 8 8

0.02 3 + 3 × 0.02 2 × 0.01 + 3 × 0.02

× 0.01 2 + 0.01 3

0.000008 + 0.000012 + 0.000006 + 0.000001

-21. (1 + 1

10 )3

= 0.000027

1 3 + 3 × 1 2 × 1 10 + 3 × 1 × ( 1 10 ) 2

+ ( 1 10 ) 3

1 + 3 10 + 3

100 + 1

1 000

1 000 + 300 + 30 + 1

1 000

EJERCICIO 197

= 1 331

1 000 = 1.331

Elevar al cubo, descomponiendo en

decenas y unidades:

-1. 15

(10 + 5) 3

10 3 + 3 × 10 2 × 5 + 3 × 10 × 5 2 + 5 3

1 000 + 1 500 + 750 + 125 = 3 375

-2. 23

(20 + 3) 3

20 3 + 3 × 20 2 × 3 + 3 × 20 × 3 2 + 3 3

8 000 + 3 600 + 540 + 27 = 12 167

-3. 56

(50 + 6) 3

50 3 + 3 × 50 2 × 6 + 3 × 50 × 6 2 + 6 3

-4. 89

125 000 + 45 000 + 5 400 + 216

= 175 616

(80 + 9) 3

80 3 + 3 × 80 2 × 9 + 3 × 80 × 9 2 + 9 3

512 000 + 172 800 + 19 440 + 729

= 704 969

-5. 93

(90 + 3) 3

90 3 + 3 × 90 2 × 3 + 3 × 90 + 3 2 + 3 3

-6. 97

729 000 + 72 900 + 2 430 + 27

= 804 357

(90 + 7) 3

90 3 + 3 × 90 2 × 7 + 3 × 90 × 7 2 + 7 3

729 000 + 170 100 + 13 230 + 343

= 912 673

-7. 109

(100 + 9) 3

100 3 + 3 × 100 2 × 9 + 3 × 100 × 9 2 + 9 3

1 000 000 + 270 000 + 24 300 + 729

= 1 295 029

-8. 131

(130 + 1) 3

130 3 + 3 × 130 2 × 1 + 3 × 130 × 1 2 + 1 3

-9. 153

2 197 000 + 50 700 + 390 + 1

= 2 248 091

(150 + 3) 3

150 3 + 3 × 150 2 × 3 + 3 × 150 × 3 2 + 3 3

3 375 000 + 202 500 + 4 050 + 27

= 3 581 577

-10. 162

(160 + 2) 3

160 3 + 3 × 160 2 × 2 + 3 × 160 × 2 2 + 2 3

4 096 000 + 153 600 + 1 920 + 8

= 4 251 528

LEONARDO F. APALA TITO 243

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