Exponents: x to the exponent of -4/6 *x to the exponent of -

TimmyWilliamson said:
x to the exponent of -4/6 *x to the exponent of -3/6
Does the above mean the following?

. . . . .(x[sup:15h5r11k]-4/6[/sup:15h5r11k])(x[sup:15h5r11k]-3/6[/sup:15h5r11k])

Were the instructions to "simplify", to "evaluate" (for some value of x), or something else?

What have you tried? How far have you gotten? Where are you stuck?

Please be complete. Thank you! :D

Eliz.
 
Maybe this'll help:

(x[sup:441pckz3]a[/sup:441pckz3])(x[sup:441pckz3]b[/sup:441pckz3])= x[sup:441pckz3]a+b[/sup:441pckz3]
 
TimmyWilliamson said:
x to the exponent of -4/6 *x to the exponent of -3/6

Question: why did you not post that as x^(-2/3) * x^(-1/2) ?
 
Denis said:
TimmyWilliamson said:
x to the exponent of -4/6 *x to the exponent of -3/6

Question: why did you not post that as x^(-2/3) * x^(-1/2) ?
He probably posted the exercise as it was given to him. And the assignment probably made this exercise easier (since students nowadays aren't expected to be familiar with equivalent fractions) by pre-converting the fractions to a common denominator.

All of this, of course, assumes that we've correctly guessed the poster's meaning. A confirning or correcting reply would certainly be helpful.... :?

Eliz.
 
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