Rút gọn: √16x – √225x³ + √114xy ² – √49x

Question

Rút gọn:
√16x – √225x³ + √114xy ² – √49x

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Huy Gia 4 years 2020-10-29T18:47:46+00:00 2 Answers 78 views 0

Answers ( )

  1. minhkhoi
    0
    2020-10-29T18:49:12+00:00
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    `sqrt{16x} – sqrt{225x³} + sqrt{114xy²} – sqrt{49x}`

    `= 4sqrt{x} – 5|x|sqrt{x} + ysqrt{114x} – 7sqrt{x}`

    `= -3sqrt{x} – 5|x|sqrt{x} + ysqrt{114x}`

  2. Farah
    0
    2020-10-29T18:49:21+00:00
    Reply

    Giải thích các bước giải:

    `\sqrt{16x} – \sqrt{225x^3} + \sqrt{114xy^2} – \sqrt{49x}`

    `=4\sqrt{x} – 15x\sqrt{x} + y\sqrt{114x} – 7\sqrt{x}`

    `=-3\sqrt{x}-15x\sqrt{x}+y\sqrt{114x}`

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