document.write( "Question 986025: Expanding each integer in the expression 21*12, the result is [(2*10^1)+(1*10^0)] * [(1*10^1) + (2*10^0)]. Replace the 10s with x's and then multiply this expression using Foil.
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Algebra.Com's Answer #606833 by macston(5194) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "[(2*10^1)+(1*10^0)] * [(1*10^1) + (2*10^0)]
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\n" ); document.write( " $\"%28%282%2A10%5E1%29%2B%281%2A10%5E0%29%29%2A%28%281%2A10%5E1%29%2B%282%2A10%5E0%29%29\"$
\n" ); document.write( " $\"%282x%2B1%29%28x%2B2%29\"$
\n" ); document.write( " $\"2x%5E2%2Bx%2B4x%2B2\"$
\n" ); document.write( " $\"2x%5E2%2B5x%2B2\"$ \n" ); document.write( "

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