Final answer:
To simplify the expression 6/(x+2) - 1/(x+9), we find a common denominator and combine the numerators to get (5x + 52) / ((x+2)(x+9)).
Step-by-step explanation:
To simplify the expression 6/(x+2) - 1/(x+9), we need to find a common denominator for the two fractions. We do this by multiplying each fraction by a form of 1 that will equate their denominators. Here's a step-by-step breakdown:
- Multiplication: (6/(x+2)) * ((x+9)/(x+9)) - (1/(x+9)) * ((x+2)/(x+2))
- The common denominator will be (x+2)(x+9).
- Combine the numerators: (6(x+9)) - (1(x+2)).
- Expand the brackets: 6x + 54 - (x + 2)
- Combine like terms: (6x - x) + (54 - 2)
- Simplify: 5x + 52
The simplified result is (5x + 52) / ((x+2)(x+9)).