so i have this summer assign ment and this is one of the two questions i just cant seem to remember. simplify. give answers in positvie exponents. d^-4e^2f^2 thansk so much for your help.
2007-08-24 06:12:31 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
d^-4 = 1 / d^4
So...
d^-4 e^2 f^2 = (e^2 f^2) / d^4
2007-08-24 06:20:48 · answer #1 · answered by Mathematica 7 · 0⤊ 0⤋
moving the exponent up or down changes its sign. Just move the d^-4 down to the denominator, and it becomes d^4. The problem is finished. Remember, a whole number can be written as a fraction. Ex. 4=4/1
2007-08-24 06:20:17 · answer #2 · answered by Ed S 4 · 0⤊ 0⤋
Using a^(-b) = 1 / (a^b):
d^(-4) e^2 f^2
= e^2 f^2 / d^4.
2007-08-24 06:20:12 · answer #3 · answered by Anonymous · 0⤊ 0⤋
A negative exponent tells you that the quantity is in the denominator of a fraction. So d to the 4th is in the bottom and e & f squared are on top. And since e & f have the sasme power then they can have a common square in this case.
your answer is:
(ef)^2 / d^4
2007-08-24 06:29:37 · answer #4 · answered by 037 G 6 · 0⤊ 0⤋
d^-4e^2f^2
= 4e^2f^2/d^4
Because, when you have a negative exponent, you move it to the opposite side of the fraction line, removing the sign of the exponent.
2007-08-24 06:19:55 · answer #5 · answered by Larry C 3 · 0⤊ 0⤋