document.write( "Question 1105249: A Polynomial Function for Volume\r
\n" ); document.write( "\n" ); document.write( "The polynomial function given below represents the volume of a rectangular prism with a square base. Each binomial factor of the polynomial represents one dimension of the rectangular prism.\r
\n" ); document.write( "\n" ); document.write( "f(x) = x^3 + x^2 – 21x – 45\r
\n" ); document.write( "\n" ); document.write( " Use the Remainder Theorem to determine whether the binomials x – 5 and x + 1 represent dimensions of the rectangular prism. Enter your answer and explanation in the box.\r
\n" ); document.write( "\n" ); document.write( "Rewrite the given function as a product of binomial factors. Enter your answer and explanation in the box.\r
\n" ); document.write( "\n" ); document.write( "The area of the base of the rectangular prism is 289 cm2. What are the dimensions of the rectangular prism? Enter your answer and explanation in the box.
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Algebra.Com's Answer #720021 by greenestamps(13198)\"\" \"About 
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\n" ); document.write( "(1) \"f%285%29+=+5%5E3%2B5%5E2-21%2A5-45+=+125%2B25-105-45+=+0\"
\n" ); document.write( "Yes, (x-5) is a factor of f(x), so (x-5) represents a dimension of the prism.

\n" ); document.write( "\"f%28-1%29+=+%28-1%29%5E3%2B%28-1%29%5E2-21%28-1%29-45+=+-1%2B1%2B21-45+=+-24\"
\n" ); document.write( "No, (x+1) is not a factor of f(x), so (x+1) does not represent a dimension of the prism.

\n" ); document.write( "(2) \"x%5E3%2Bx%5E2-21x-45+=+%28x-5%29%28x%5E2%2B6x%2B9%29+=+%28x-5%29%28x%2B3%29%5E2\"

\n" ); document.write( "(3) \"%28x%2B3%29%5E2+=+289\"
\n" ); document.write( "\"x%2B3+=+17\"
\n" ); document.write( "\"x+=+14\"

\n" ); document.write( "The dimensions are (x+3) by (x+3) by (x-5) = 17x17x9.
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