Simplifying the Expression (x^2 + 4x + 4) / (x + 2)
This expression represents a rational function, which is a fraction where both the numerator and denominator are polynomials. To simplify it, we can use the following steps:
1. Factor the Numerator
The numerator, (x^2 + 4x + 4), is a perfect square trinomial. It can be factored as:
(x + 2)(x + 2)
2. Simplify the Expression
Now we have:
(x + 2)(x + 2) / (x + 2)
Since we have (x + 2) in both the numerator and the denominator, we can cancel them out.
This leaves us with (x + 2) as the simplified expression.
Important Note:
It's crucial to remember that the simplified expression (x + 2) is only equivalent to the original expression (x^2 + 4x + 4) / (x + 2) when x ≠ -2. This is because the original expression is undefined when x = -2, as it results in division by zero.
Therefore, the final simplified form of the expression is:
(x + 2), where x ≠ -2