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1) Calculați: 5.{5. [101.(206:2-4.25)– 3]–15.99}=​

Răspuns :

IGeoask

Răspuns:

=5x{5x [101x(206:2-4x25)– 3]–15x99}=

= 5x{5x [101x(103-100)– 3]–1485}

= 5x{5x [101x3– 3]–1485}

= 5x{5x [303-3]–1485}

= 5x(5x 300–1485)

= 5x(1500-1485)

= 5x15

= 75

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