Question

1 Calculati

5×(4+3×7)-2×{5+2×[10-3×(17-3×7)]}
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Answer 1

Răspuns: 27

Explicație pas cu pas:

5 × (4 + 3 × 7) - 2 × {5 + 2 × [10 - 3 × (17 - 3 × 7)]} =

= 5 × (4 + 21) - 2 × {5 + 2 × [10 - 3 × (17 - 21)]}

= 5 × 25 - 2 × [5 + 2 × (10 - 3 × -4)]

= 125 - 2 × [5 + 2 × (10 + 12)]

= 125 - 2 × (5 + 2 × 22)

= 125 - 2 × (5 + 44)

= 125 - 2 × 49

= 125 - 98

= 27