Radical exponents

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Use rational exponents to write 4suare root 5 * 2 sqaure root 8

Please help.. I can't find the square root button

  • Rational exponents -

    The subject is rational (fractional) exponents, not radical.

    4sqrt5 * 2 sqrt8 = 8 sqrt40
    = 8 sqrt(4*10) = 16 sqrt10

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