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1 November, 19:29

What is the sum sqaure root-2 and sqaure root - 18

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  1. 1 November, 20:00
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    The correct answer is that 4√ - 2 is the simplest radical form of this mathematical expression and 8i (i = imaginary unit) is the solution if we want to find out the square root of a negative signed number.

    Step-by-step explanation:

    1. Let's write in a mathematical expression the information given:

    Sum square root of - 2 and the square root of - 18

    √ - 2 + √ - 18

    √ - 2 + √ 9. - 2 (9 * - 2 = - 18)

    √ - 2 + 3 √ - 2 (√ 9 = 3)

    4 √ - 2

    This is the simplest radical form of this mathematical expression. If we want a concrete number, we should remember that if we refer to the imaginary numbers we can find the solution for √-2 = 2i, or for any other negative number, where i is the imaginary unit. This unit can be used for the development of the square root of negative signed numbers.

    Then,

    4 √ - 2 = 4 (2i) = 8i

    The correct answer is that 4√ - 2 is the simplest radical form of this mathematical expression and 8i (i = imaginary unit) is the solution if we want to find out the square root of a negative signed number.
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