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geoffbBest ResponseYou've already chosen the best response.0
\[\LARGE (b^{x})^{y} = b^{x \times y}\]
 one year ago

geoffbBest ResponseYou've already chosen the best response.0
Remember the outside exponent also applies to the 8.
 one year ago

mathgirl73Best ResponseYou've already chosen the best response.1
everything must be raised to 2/3 power . when raise a product by a power you multiply the exponents
 one year ago

xKingxBest ResponseYou've already chosen the best response.0
@geoffb Can you explain how I'd use that formula with this problem?
 one year ago

mathgirl73Best ResponseYou've already chosen the best response.1
dw:1354925885023:dw
 one year ago

mathgirl73Best ResponseYou've already chosen the best response.1
dw:1354925885023:dw
 one year ago

xKingxBest ResponseYou've already chosen the best response.0
Can you explain what you did in each step so I can make sure I understand it?
 one year ago

mathgirl73Best ResponseYou've already chosen the best response.1
from the image the exponents looks negative.
 one year ago

mathgirl73Best ResponseYou've already chosen the best response.1
everything has to be raised by the power that is outside the parentheses. so 2/3
 one year ago

mathgirl73Best ResponseYou've already chosen the best response.1
everything has to be raised by the power that is outside the parentheses. so 2/3
 one year ago

mathgirl73Best ResponseYou've already chosen the best response.1
8 raised to the 2/3 and a^3 raised to the 2/3
 one year ago

mathgirl73Best ResponseYou've already chosen the best response.1
you have to multiply a^3 by 2/3
 one year ago

mathgirl73Best ResponseYou've already chosen the best response.1
so you get in the numerator 3 times 2 = 6 and the denominator 3 times 1=3
 one year ago

mathgirl73Best ResponseYou've already chosen the best response.1
so you get in the numerator 3 times 2 = 6 and the denominator 3 times 1=3
 one year ago

mathgirl73Best ResponseYou've already chosen the best response.1
6/3=2 so you have a^2
 one year ago

mathgirl73Best ResponseYou've already chosen the best response.1
now you will have 8^2/3 a^2
 one year ago

mathgirl73Best ResponseYou've already chosen the best response.1
you can't have negative exponents so you drop 82/3 down in the denominator and it becomes 8^2/3
 one year ago

mathgirl73Best ResponseYou've already chosen the best response.1
now you have a^2/8^2/3
 one year ago

mathgirl73Best ResponseYou've already chosen the best response.1
if you havent learned how to convert fractional exponents to radicals then you can stop there
 one year ago

mathgirl73Best ResponseYou've already chosen the best response.1
but if not you convert 8 2/3 to a radical
 one year ago

mathgirl73Best ResponseYou've already chosen the best response.1
dw:1354927080454:dw
 one year ago

geoffbBest ResponseYou've already chosen the best response.0
"you can't have negative exponents" Sure you can. The rest of what you said looks good though.
 one year ago

mathgirl73Best ResponseYou've already chosen the best response.1
you can but 99.9% of the time n Algebra, teachers want the answer using positive exponents.
 one year ago
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