document.write( "Question 721261: (a−4)−7
\n" ); document.write( "#42, just multiply the two exponents. You should get a positive value so there is no need to reciprocate the final expression. \n" ); document.write( "

Algebra.Com's Answer #442310 by rfer(16322) $\"\"$ $\"About$

You can put this solution on YOUR website!
=a^28 \n" ); document.write( "

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