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?

n^2  14n = 0
n(n14) = 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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