SOLUTION: A rectangular field had a length of x^3 + 2x^2 – 4 feet and a width
of 4x^2 – 5 feet. Express the area as a polynomial in x.
Algebra.Com
Question 123291: A rectangular field had a length of x^3 + 2x^2 – 4 feet and a width
of 4x^2 – 5 feet. Express the area as a polynomial in x.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A rectangular field had a length of x^3 + 2x^2 – 4 feet and a width
of 4x^2 – 5 feet. Express the area as a polynomial in x.
----------------------
Area = length*width
Area = (x^3+2x^2-4)*(4x^2-5)
=4x^5+8x^4-16x^2-5x^3-10x^2+20
=4x^5+8x^4-5x^3-26x^2+20
===========================
Cheers,
Stan H.
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