Question

Can someone please help me with this problem? B15%29%7D%7B%28x%2B3%29%7D%20" id="TexFormula1" title=" \frac{( x^{2} +8x+15)}{(x+3)} " alt=" \frac{( x^{2} +8x+15)}{(x+3)} " align="absmiddle" class="latex-formula">

Answer 1

First, factor the expression on the top. What two numbers add to get 8 and multiply to 15? 5 and 3! so the top expression factors to (x+3)(x+5). You can cancel the x+3 from the denominator and end up with x+5. Make sense?