document.write( "Question 187188: Simplify each of these, expressing your answers with postive indices:
\n" ); document.write( "a. (x^-4y^7/x^-2y^-5) / (x^3y^-6/x^-1y)\r
\n" ); document.write( "\n" ); document.write( "b. 5(a^-4)^3b^-6/(a^2b^-1)^4 x 2a^7(b^-3)^2/a^-4b^-9\r
\n" ); document.write( "\n" ); document.write( "Coud you please show all working out because we've only started working on these, and I'm finding them really hard.
\n" ); document.write( "Thanks in advance.
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Algebra.Com's Answer #140315 by vleith(2983)\"\" \"About 
You can put this solution on YOUR website!
a. \"%28%28x%5E-4y%5E7%2Fx%5E-2y%5E-5%29+%2F+%28x%5E3y%5E-6%2Fx%5E-1y%29%29\" First, convert so that all exponents are positive
\n" ); document.write( "\"%28%28x%5E2y%5E7y%5E5%2Fx%5E4%29+%2F+%28x%5E3x%2Fy%5E6y%29%29\" Combine powers of like terms
\n" ); document.write( "\"%28%28x%5E2y%5E12%2Fx%5E4%29+%2F+%28x%5E4%2Fy%5E7%29%29\" Simplify
\n" ); document.write( "\"%28%28y%5E12%2Fx%5E2%29+%2F+%28x%5E4%2Fy%5E7%29%29\" divide
\n" ); document.write( "\"%28%28y%5E12%2Fx%5E2%29+%2A+%28y%5E7%2Fx%5E4%29%29\" multiply
\n" ); document.write( "\"%28y%5E12y%5E7%2Fx%5E2x%5E4%29\" Combine powers of like terms
\n" ); document.write( "\"%28y%5E19%2Fx%5E6%29\"\r
\n" ); document.write( "\n" ); document.write( "b. 5(a^-4)^3b^-6/(a^2b^-1)^4 x 2a^7(b^-3)^2/a^-4b^-9
\n" ); document.write( "use the same process as shown above for this one with one extra step.
\n" ); document.write( " evaluate powers of powers first
\n" ); document.write( " Complete as done above, step by step
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