Question 50257
x squared +17x+72/x+9

first, we need to factor out the equation on the top!

(x+9)(x+8)/x+9, now cancel out the x+9/x+9=1 so it would be x+8/1 or x+8!

*To factor out use this chart
**Make one of numbers under the product column is a and the others is b!
sum of 17   product of 72
72             72,1
38             36,2
27             24,3
22             18,4
18             12,6
17              8,9  (this is the one!)

now put it in the equation (x+a)(b+x), or (x+8)(x+9)