document.write( "Question 720670: How do you work out this problem? (5+h) to the 3rd power
\n" ); document.write( "I've tried and tried but somewhere I'm getting confused.
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Algebra.Com's Answer #441931 by Simnepi(216)\"\" \"About 
You can put this solution on YOUR website!
\"%285%2Bh%29%5E3\"=(5+h)(5+h)(5+h)
\n" ); document.write( "let's multiply the first pair of brackets using FOIL (First, Outer, Inner, Last) and leave the last bracket alone for now
\n" ); document.write( "giving
\n" ); document.write( "\"%285%5E2%2B5h%2B5h%2Bh%5E2%29%285%2Bh%29\"
\n" ); document.write( "simplifying this gives
\n" ); document.write( "\"%2825%2B10h%2Bh%5E2%29%285%2Bh%29\"
\n" ); document.write( "now we have to multiply these two brackets together
\n" ); document.write( "we multiply everything in the first bracket by each term in the second
\n" ); document.write( "we'll multiply everything by the 5 first and then by the h
\n" ); document.write( "\"125%2B50h%2B5h%5E2%2B25h%2B10h%5E2%2Bh%5E3\"
\n" ); document.write( "now we'll gather like terms and simplify.
\n" ); document.write( "giving
\n" ); document.write( "\"125%2B75h%2B15h%5E2%2Bh%5E3\"
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