Question

Square root of x²-6x+9 if x is greater than or equal 3​

Answer 1

x-3

Explanation:

x²-6x+9 is equal to (x-3)²

The square root of any term that is positive is equal to the absolute value of the term. If x is greater or equal to 3, it makes the term positive.

So the root of x²-6x+9 is x-3