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:
We can then re-arrange this into a quadratic and simplify it so:
x=8, x=-2
And since the question is asking for the positive solution,
x=8
Here's the solution ~
To write a quadrilatic function, we have to use its roots, like we have to subtract the roots from x and multiply them ~ then we will get our required function !
Since our only root is 11 here, we have to do t double
That's our required function ~ I hope you understood the whole thing !
