Math

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when a number is multplied by itself the result is equal to 7 times twice the number. What is one possible value of the number

So n^2= 7 x 2n?
Then can't 0 be one?

  • Math -

    n^2 - 14n = 0
    n(n-14) = 0
    n=0 or n=14

    yes, zero is one of them, easy to check

    the other is 14

    check:
    14^2 = 196
    7 times twice the number = 7(2)(14) = 196
    yup! , they both work

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