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The square root of a number is 2k. What is half of the number



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  • Tolulope Adeniyi

    \(
    \sqrt{x} = 2k \)
    Taking square of both sides
    \( x = (2k)^{2}
    \)
    \( x = 4 k^{2} \)
    The half of x will give
    \( \frac{x}{2} = \frac{4}{2} k^{2} \)
    \( \frac{x}{2} = 2 k^{2} \)

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  • Tolulope Adeniyi

    Let the number be x
    \( \sqrt{x} \) = 2k
    x = 4\( x^{2} \)
    Therefore, \( \frac{1}{2}x = \frac{4}{2} x^{2} \)

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