How do you factor #y=n^2-16n+64 #?
1 Answer
Apr 11, 2018
See below:
Explanation:
I think the easiest way to think about a problem when asked to factorize is: "What two numbers, when added gives -16, and when multiplied gives 64?"
When factoring in this case you would get:
But we know that
And then we can conclude that the number in question must be
So the factorized version would be:
So the quadratic has a repeated solution:
graph{x^2-16x+64 [-10, 10, -5, 5]}