Question

Simplify the rational expression. Find all numbers that must be excluded from the domain of the simplified rational expression. (x^(2)+10x+25)/(x^(2)+14x+45)

Answer 1

`\frac{ {x}^(2) + 10x + 25}{ {x}^(2) + 14x + 45} = ((x + 5)(x + 5))/((x + 5)(x + 9)) = (x + 5)/(x + 9)`

x ≠ -9, -5