# 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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