# WHat happend to 'p' :(

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#1
This an example question and i'm confused of to where term p went . Ater dividing by 3p I would have got the answer to be 17pq-16p=width . Why am I doing this wrong? Is this to do with rules of powers when dividing ? Thanks
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3 years ago
#2
Because you divided it involving p... so the p's in the main equation are removed.
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#3
(Original post by Vikingninja)
Because you divided it involving p... so the p's in the main equation are removed.
Yeah so i'm guessing this is to do is to do with power rules when dividing e.g p^1/p^1=1 because the powers subtract?
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3 years ago
#4
(Original post by wfisom)
Yeah so i'm guessing this is to do is to do with power rules when dividing e.g p^1/p^1=1 because the powers subtract?
Yeah.
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3 years ago
#5
You want to find the width, and to do that, you need to get rid of the 3p. This could be possible by taking out a factor of 3p from the left hand side of the equation, then dividing by 3p on both sides to just get the width.
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3 years ago
#6
"Divide both sides by 3p to find the width" so

is the same as
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