75÷{32-[5×3 mũ 2-42)]}-14

`Bạn tham khảo nhé :`

`75:{32-[5.3^2-42)]}-14`

`=75:{32-[5.9-42)]}-14`

`=75:{32-[45-42)]}-14`

`=75:{32-3}-14`

`=75:29-14`

`=75/29-14`

`=75/29-406/29`

`=-331/29`

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