Since problem #1 started with the whole fraction raised to the minus 3 power, you could raise everything to the 3rd power as you have asked, but it is usually easier in the long run if you first look to see if the numbers can be reduced. You'll get the same answer either way. So it's just easier to reduce 9/12 to 3/4, than it is to raise the 9 and the 12 to the 3rd power, then have to figure out how to reduce 729/1728 . As for the negative exponent, that denotes the reciprocal. So, you can get rid of the minus sign in front of the "-3" by simply turning the whole fraction upside down. For example: (3/4) to the -2 power would be the same as (4/3) to the 2 power. Sorry that I forgot to multiply all of the exponents by 3 in the answer I gave you last night. No one should do Algebra at that time of day, let alone a retiree! -- Tom
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Today's Featured Article - Field Modifications (Sins of the Farmer) - by Staff. Picture a new Chevrolet driving down the street without it's grill, right fender and trunk lid. Imagine a crude hole made in the hood to accommodate a new taller air cleaner, the fender wells cut away to make way for larger tires, and half of a sliding glass door used to replace the windshield. Top that off with an old set of '36 Ford headlight shells bolted to the hood. Pretty unlikely for a car... but for a tractor, this is pretty normal. It seems that more often than not they a
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