Answer:
x=8
Step-by-step explanation:
Let's say this mystery number is x.
6 times this x is 16 less than the square of x so we can write this as:
[tex]6x = x^2 - 16[/tex]
We can then re-arrange this into a quadratic and simplify it so:
[tex]x^2 -6x-16 =0[/tex]
[tex](x-8)(x+2)[/tex]
x=8, x=-2
And since the question is asking for the positive solution,
x=8
