SOLUTION: A bar of gold has a base area that can be expressed as 3x^2+8x+5 cm^2. The height of the gold bar can be expressed as x+5cm. Find the expression representing the volume of the gold

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: A bar of gold has a base area that can be expressed as 3x^2+8x+5 cm^2. The height of the gold bar can be expressed as x+5cm. Find the expression representing the volume of the gold      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 1053768: A bar of gold has a base area that can be expressed as 3x^2+8x+5 cm^2. The height of the gold bar can be expressed as x+5cm. Find the expression representing the volume of the gold bar.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
A bar of gold has a base area that can be expressed as 3x^2+8x+5 cm^2. The height of the gold bar can be expressed as x+5cm. Find the expression representing the volume of the gold bar.
--------------------
Volume = (area of base)(height)
--------------------
V = (3x^2+8x+5)(x+5) cm^3
------
V = 3x^3 + 15x^2 + 8x^2 + 40x + 5x + 25
-----------
V = 3x^3 + 23x^2 + 45x + 25 cm^3
------------
Cheers,
Stan H.
------------