document.write( "Question 192338: how do you factor 125t cubed+8. our book gives this answer:
\n" ); document.write( "(5t + 2)(25t squared- 10t+ 4)\r
\n" ); document.write( "\n" ); document.write( "thank you!
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Algebra.Com's Answer #144364 by nerdybill(7384)\"\" \"About 
You can put this solution on YOUR website!
125t^3 + 8
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\n" ); document.write( "What you're suppose to see is that this is the same as:
\n" ); document.write( "(5t)^3 + 2^3
\n" ); document.write( "Which is a special case -- \"sum of cubes\".
\n" ); document.write( "See this web site for additional info:
\n" ); document.write( "http://www.purplemath.com/modules/specfact2.htm
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\n" ); document.write( "a^3 + b^3 = (a + b)(a^2 – ab + b^2)
\n" ); document.write( "In your case:
\n" ); document.write( "a is 5t
\n" ); document.write( "b is 2
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\n" ); document.write( "Therefore:
\n" ); document.write( "125t^3 + 8
\n" ); document.write( "= (5t)^3 + 2^3
\n" ); document.write( "= (5t + 2)((5t)^2 - (5t)(2) + 2^2)
\n" ); document.write( "= (5t + 2)(25t^2 - 10t + 4)
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