giúp mình với mình đang cần gấp

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giúp mình với mình đang cần gấp

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    `\sqrt{64}+2\sqrt{(-3)^2}+3\sqrt{\frac{25}{16}}`

    `=8+2\sqrt{9}+3 . 5/4`

    `=8+2 . 3 + 15/4`

    `=8+6+15/4`

    `=14+15/4`

    `=71/4`

     

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