document.write( "Question 55452: Please help w/ the following:
\n" ); document.write( "Multiply:
\n" ); document.write( "[{x+2}^3]
\n" ); document.write( "Thank you. \n" ); document.write( "

Algebra.Com's Answer #37628 by funmath(2933) $\"\"$ $\"About$

You can put this solution on YOUR website!
Multiply:
\n" ); document.write( "[{x+2}^3]
\n" ); document.write( " $\"%28x%2B2%29%5E3\"$
\n" ); document.write( " $\"%28x%2B2%29%28x%2B2%29%28x%2B2%29\"$ Multiply the first two first:
\n" ); document.write( " $\"%28x%28x%29%2Bx%282%29%2B2%28x%29%2B2%282%29%29%28x%2B2%29\"$
\n" ); document.write( " $\"%28x%5E2%2B2x%2B2x%2B4%29%28x%2B2%29\"$ Combine like terms:
\n" ); document.write( " $\"%28x%5E2%2B4x%2B4%29%28x%2B2%29\"$ Distribute all the terms in the first parenthesis through all the terms in the second parenthesis:
\n" ); document.write( " $\"x%5E2%28x%29%2Bx%5E2%282%29%2B4x%28x%29%2B4x%282%29%2B4%28x%29%2B4%282%29\"$
\n" ); document.write( " $\"x%5E3%2B2x%5E2%2B4x%5E2%2B8x%2B4x%2B8\"$ Combine like terms:
\n" ); document.write( " $\"highlight%28x%5E3%2B6x%5E2%2B12x%2B8%29\"$
\n" ); document.write( ":
\n" ); document.write( "Another way to do it is by the formula, the advantage is that it's shorter. The disadvantage is, having to memorize yet another formula:
\n" ); document.write( " $\"highlight%28%28a%2Bb%29%5E3=a%5E3%2B3a%5E2b%2B3ab%5E2%2Bb%5E3%29\"$
\n" ); document.write( "a=x and b=2
\n" ); document.write( " $\"%28a%2Bb%29%5E3=%28x%29%5E3%2B3%28x%29%5E2%282%29%2B3%28x%29%282%29%5E2%2B%282%29%5E3\"$
\n" ); document.write( "= $\"x%5E3%2B6x%5E2%2B12x%2B8\"$
\n" ); document.write( "Happy Calculating!!!
\n" ); document.write( " \n" ); document.write( "

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