SOLUTION: Hi! Could someone please help me with these problems. I need to simplify and all exponents should be positive. (x+4)^2 (x+5y)(x-5y) (x^3+7x^2+7x-15)/(x+3) Thanks so muc

Algebra ->  Systems-of-equations -> SOLUTION: Hi! Could someone please help me with these problems. I need to simplify and all exponents should be positive. (x+4)^2 (x+5y)(x-5y) (x^3+7x^2+7x-15)/(x+3) Thanks so muc      Log On


   

Question 65608: Hi! Could someone please help me with these problems. I need to simplify and all exponents should be positive.
(x+4)^2
(x+5y)(x-5y)
(x^3+7x^2+7x-15)/(x+3)
Thanks so much for your help!
Answer by ptaylor(2198) About Me  (Show Source):
You can put this solution on YOUR website!
Simplify:
(1) (x+4)^2
(x+4)^2=(x+4)(x+4)
x+4
x+4
---------
x^2+4x
+4x+16
-------------
x^2+8x+16



(2) (x+5y)(x-5y)
x+5y
x-5y
----------
x^2+5xy
-5xy-25y^2
------------
x^2-25y^2





(3) (x^3+7x^2+7x-15)/(x+3)

x^2+4x-3
-----------------
x+3/x^3+7x^2+7x-15
x^3+3x^2
------------
4x^2+7x-15
4x^2+12x-15
-----------
-5x-15
-5x-15
-------
R=0

Hope this helps-----ptaylor