The term in parentheses is a perfect square trinomial that can be expressed as follows:
(x² - 12x + 27) → (x - 3)*(x - 9)
Answer:
(2) (x - 3)*(x - 9)
For better understanding, follow the example and the annex:
The square of the difference of two terms
Following the criteria of the previous item, we have: (a-b)² = (a-b).(a-b)
Where a is the first term and b is the second.
When we develop this product, using the distributive property of multiplication.
