Question

Ajutati-ma va rog sa le rezolv !!Dau Coroana!

Answer 1

a )

- 3 × [ 1 - 3 × ( - 3 + 2 × 5 ) ] = 60

= - 3 × [ 1 - 3 × ( - 3 + 10 ) ] =

= - 3 × ( 1 - 3 × 7 ) =

= - 3 × ( 1 - 21 ) =

= - 3 × ( - 20 ) =

= 60

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b )

- 5 × [ - 1 + 2 × ( - 7 + 3 × 5 ) + 6 ] =

= - 5 × [ - 1 + 2 × ( - 7 + 15 ) + 6 ] =

= - 5 × ( - 1 + 2 × 8 + 6 ) =

= - 5 × ( - 1 + 16 + 6 ) =

= - 5 × ( 15 + 6 ) =

= - 5 × 21 =

= - 105

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c)

- 1 × [ - 8 × ( - 3 + 2 × 4 ) + 6 ] - 11 =

= - 1 × [ - 8 × ( - 3 + 8 ) + 6 ] - 11 =

= - 1 × ( - 40 + 6 ) - 11 =

= 34 - 11 =

= 23

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d)

- 2 × [ - 5 - 1 × ( - 3 + 2 × 1 ) ] - 7 × ( - 1 ) =

= - 2 × [ - 5 - 1 × ( - 3 + 2 )] + 7 =

= - 2 × ( - 5 + 1 ) + 7

= 8 + 7 =

= 15

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e)

- 13⁰ + 13¹ + ( - 13 )¹ + 1⁰ + 1999⁰ = 1

= - 1 + 13 - 13 + 1 + 1 =

= 1

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f)

( - 4 )⁷³ : 2¹⁴⁴ - 25¹² : 5²³ = ( - 2² )⁷³ : 2¹⁴⁴ - 5²ˣ¹² : 5²³ = - 2¹⁴⁶ : 2¹⁴⁴ - 5²⁴ : 5²³=

- 2² - 5¹ = - 4 - 5 = - 9

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g)

[ ( - 3 )² - ( - 3 )⁸⁷ : ( - 3 )⁸⁵ ] : 5 =

= [ 9 - ( + 3)⁸⁷⁻⁸⁵ ] : 5 =

= ( 9 - 3² ) : 5 =

= 0 : 5 =

= 0

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h )

{ ( - 2 )² + [ ( - 2 )² ] ⁹⁵ : [ ( - 2)⁹⁴ ] ² } : 8 =

= [ 4 + ( + 2) ¹⁹⁰ ⁻ ¹⁸⁸ ] : 8 =

= ( 4 + 2² ) : 8 =

= 8 : 8 =

= 1

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i)

5² + [ ( - 2 )⁷ x 25 x ( - 3 )² ] : [ 9 x ( - 4 )² x 5 ] =

= 25 + [ 25 x ( - 2 )⁷ x 9 ] : ( 9 x 2⁴ x 5 ) =

= 25 + 5 x ( - 2)³ =

= 25 - 40 =

= - 15