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Simplify with Positive Exponents
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Basically
I'm tying the question
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3Root(10x^3)^2/(10x^6)^-1
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Please explain how i would do this.
UsukiDoll
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|dw:1366673324895:dw|
UsukiDoll
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|dw:1366673351195:dw|
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|dw:1366673369505:dw|
UsukiDoll
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we're dealing with cube roots, not square roots. which is on of the important steps. STOP! no no anything with a negative exponent goes in the denominator
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|dw:1366673420677:dw|
UsukiDoll
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so first of all we need to multiple (10x^3)(10x^3)
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Thats part of the questionn
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contiue
UsukiDoll
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ok so...
multiplying (10x^3)^2
will give me 10^2x^6 or 100x^6
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right
UsukiDoll
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|dw:1366673520721:dw|
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|dw:1366673544927:dw|
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ya i got that
UsukiDoll
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I can cancel out the x^6''s and 100/10 = 10
since 10 isn't divisible by 3 which is the cube root we are done.
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|dw:1366673594742:dw|
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answer key says 10x^4.
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how can that be?
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oH I see what they did.
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they didn't cancel out the x^6's. funny. it should
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if that's the case 6 is divisible by 3 so we have x^2
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ok now I got it|dw:1366673704430:dw|
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|dw:1366673744692:dw|
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I'm being honest....I truly believe that those x^6's can be canceled out
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because if you just focus on the x^6's for a bit and use elevator rule, I have no x's left
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i cant see what u drew in black
UsukiDoll
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I drew the answer that you have in the key, but I really think that's not correct because again I can cancel out the x^6's
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|dw:1366673844126:dw|