Question 971145
1) w(w + 5)(w + 9) 

First thing to do is expand (w + 5)(w + 9) by doing the FOIL method.  This will give us:


{{{w^2+14w+45}}}


The last step is to multiply the w that's left by {{{w^2+14w+45}}}:  {{{w(w^2+14w+45)}}}.  This gives us our final answer:  {{{w^3+14w^2+45w)}}}


2.  The area of a rectangle is:  Area = Length x Width


So, the first side (the length) will be x + 5, since she's adding 5 feet to the length.  The second side (the width) will be x - 5, since she's reducing the width by 5.  So, the area of Rose's garden can be expressed as (x + 5)(x - 5).  As a polynomial this can be expressed as:


{{{A(x)=x^2-25}}}