document.write( "Question 233273: (4.2X10^3)(1.5X10^6) i need this put into scienific notation and how the steps to doing it?
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Algebra.Com's Answer #172188 by jsmallt9(3759) $\"\"$ $\"About$

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(4.2X10^3)(1.5X10^6)
\n" ); document.write( "Since the only operation here is multiplication and since multiplication is Commutative and Associative, we can reorder and regroup this as we choose. So I can rewrite this expression in this way:
\n" ); document.write( " $\"%28%284.2%29%281.5%29%29%28%2810%5E3%29%2810%5E6%29%29\"$
\n" ); document.write( "Now I'll multiply the first pair and the last pair of numbers. On the last pair, I will use the rule for exponents: $\"a%5Ex%2Aa%5Ey+=+a%5E%28x%2By%29\"$
\n" ); document.write( " $\"%286.60%29%2810%5E%283%2B6%29%29\"$
\n" ); document.write( "which simplifies to
\n" ); document.write( " $\"%286.60%29%2810%5E9%29\"$
\n" ); document.write( "This is the answer. Most of time scientific notation is written with a little \"x\" between the two numbers so I'll go ahead and put one in:
\n" ); document.write( " $\"6.60\"$ x $\"10%5E9\"$
\n" ); document.write( "Since we have a number between 1 and 10 in front and a power of ten in the back, this is proper scientific notation. \n" ); document.write( "

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