|
Question 123626: The formula for the area of a rectangle is a= lw.Find possible algebraic expressions for l and w if A= 6x + 5x-4
***** The 1st x is to the 4th, 2nd sq.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! The formula for the area of a rectangle is a= lw.Find possible algebraic expressions for l and w if A= 6x + 5x-4
--------------
The 1st x is to the 4th, 2nd sq.
---------------
Area = 6x^4 + 5x^2 -4
Factor to get:
= 6x^4+8x^2-3x^2-4
= 2x^2(3x^2+4)-(3x^2+4)
= (3x^2+4)(2x^2-1)
-----------
Either factor could be an expression for length or width.
=============
Cheers,
Stan H.
|
|
|
| |
