Simplifying the Expression (x+3)(x-3)/x^2-6
In this article, we will simplify the algebraic expression (x+3)(x-3)/x^2-6
. To simplify this expression, we need to follow the order of operations (PEMDAS) and apply the rules of algebra.
Step 1: Expand the Numerator
The numerator of the expression is (x+3)(x-3)
. We can expand this expression using the distributive property:
(x+3)(x-3) = x^2 - 3x + 3x - 9
Combine like terms:
= x^2 - 9
Step 2: Simplify the Denominator
The denominator of the expression is x^2 - 6
. We can factorize this expression as:
x^2 - 6 = (x + √6)(x - √6)
Step 3: Simplify the Expression
Now, we can rewrite the original expression as:
(x^2 - 9) / ((x + √6)(x - √6))
Step 4: Cancel Out Common Factors
We can see that there are no common factors between the numerator and the denominator. Therefore, the simplified expression is:
(x^2 - 9) / ((x + √6)(x - √6))
And that's the simplified form of the expression (x+3)(x-3)/x^2-6
!