Answer:
(m-3)^2
Explanation:
(m^2-6m+9) is factored by using this formula:
(a-b)^2=a^2-2ab+b^2.
Therefore, we can substitute the values into this equation.
m^2=a^2,
-6m=-2ab,
9=b^2.
Solving for b in the third equation, b is equal to 3 or -3. However, as this equation is negative, then it must be -3.
(m-3)^2