To have a Pythagorean triple, the value of x must be x = 85.
What is a Pythagorean triple?
A Pythagorean triple is a set of 3 numbers that meet the Pythagorean theorem, for a triple (x, y, z) we must have:
x^2 + y^2 = z^2
Then, for our set (13, 84, x), we must have that:
13^2 + 84^2 = x^2
Solving for x, we get:
√(13^2 + 84^2) = x = 85
So, to have a Pythagorean triple, the value of x must be x = 85.
If you want to learn more about the Pythagorean theorem, you can read:
https://brainly.com/question/654982
