document.write( "Question 118813: Good evening ma'am or sir, would you please help me on how to solve these 4 equations : \r
\n" ); document.write( "\n" ); document.write( "1). 48ab^2c(4abc^0)^-2
\n" ); document.write( "2). 3x^0-n^-2 / -(3m-n)
\n" ); document.write( "3). (144*125 / 2^3*3^2)^-1
\n" ); document.write( "4). ab^-2 - a^-2b
\n" ); document.write( " Thank you very much ma'am or sir for your generosity. :)
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Algebra.Com's Answer #87001 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
How to solve these 4 equations :
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\n" ); document.write( "These are not equations (no equal sign), you can't solve them;.
\n" ); document.write( "You can factor/simplify them, which is probably what you want you to do:
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\n" ); document.write( "1). \"48ab%5E2c%284abc%5E0%29%5E-2\"
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\n" ); document.write( "First of all any number, raised to ^0 = 1 so we can write:
\n" ); document.write( "\"48ab%5E2c%284ab%29%5E-2\"
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\n" ); document.write( "A negative exponent can be made positive by using the reciprocal, so we have:
\n" ); document.write( "\"%2848ab%5E2c%29%2F%284ab%29%5E2\"
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\n" ); document.write( "Square each term inside the brackets (denominator)
\n" ); document.write( "\"%2848ab%5E2c%29%2F%2816a%5E2b%5E2%29\"
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\n" ); document.write( "CAncel and you have:
\n" ); document.write( "\"%283c%29%2Fa\"
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\n" ); document.write( ":
\n" ); document.write( "2). \"%283x%5E0-n%5E-2%29%2F%28-%283m-n%29%29\":
\n" ); document.write( "Follow the rules that we illustrated in the 1st one:
\n" ); document.write( "The reciprocal gets rid of the neg exponent, removing the bracket changes the signs
\n" ); document.write( "\"%283+-+%281%2Fn%5E2%29%29%2F%28-3m%2Bn%29\";
\n" ); document.write( ":
\n" ); document.write( "Put the numerator into a single fraction form
\n" ); document.write( "\"%28%283n%5E2+-+1%29%2Fn%5E2%29%2F%28-3m%2Bn%29\"
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\n" ); document.write( "Which is:
\n" ); document.write( "\"%28%283n%5E2+-+1%29%2Fn%5E2%29\" * \"1%2F%28-3m%2Bn%29\" = \"%283n%5E2-1%29%2F%28n%5E2%28-3m%2Bn%29%29\" = \"%283n%5E2-1%29%2F%28%28-3mn%5E2%2Bn%5E3%29%29\"
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\n" ); document.write( "3). \"%28%28144%2A125%29%2F%282%5E3%2A3%5E2%29%29%5E-1\"
\n" ); document.write( "Do the math and invert to get rid of the ^-1:
\n" ); document.write( "\"%28%28144%2A125%29%2F%288%2A9%29%29%5E-1\" = \"%2818000%2F72%29%5E-1\" = \"72%2F18000\" = \"1%2F250\"
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\n" ); document.write( "4). \"%28ab%5E-2%29+-+%28a%5E-2b%29\" = \"a%2Fb%5E2\" - \"b%2Fa%5E2\"; using the reciprocals to get rid of the negative exponents
\n" ); document.write( "To put this over a single denominator:
\n" ); document.write( "\"%28a%5E3+-+b%5E3%29%2F%28a%5E2b%5E2%29\"
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