document.write( "Question 156131: My probem 8.4x10^5 / 2.1x10^-4 Working this out I can do.
\n" ); document.write( "4x10^5-(-4)
\n" ); document.write( "4x10^9 power, My Question is where did the - come from after the ^5-
\n" ); document.write( "As you work this problem out I would like to know where the - come from after the 5----------thank you. \n" ); document.write( "

Algebra.Com's Answer #114975 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
When you divide exponential terms of the same base, in this case 10, you subtract the exponents.
\n" ); document.write( " $\"X%5Em%2FX%5En=X%5E%28m-n%29\"$
\n" ); document.write( "That's what you did.
\n" ); document.write( " $\"10%5E5%2F10%5E%28-4%29=10%5E%285-%28-4%29%29=10%5E9\"$ \n" ); document.write( "

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