SOLUTION: 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.

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
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The 1st x is to the 4th, 2nd sq.
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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)
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Either factor could be an expression for length or width.
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Cheers,
Stan H.
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