# C4 Algebra QuestionWatch

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#1
How do you turn 2u/u-1 into 2+2/u+1? I forgot ☹️

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0
3 years ago
#2
(Original post by TSRforum)
How do you turn 2u/u-1 into 2+2/u+1? I forgot ☹️

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Either by long division or adding zero creatively.
0
#3
(Original post by Zacken)
Either by long division or adding zero creatively.
There's a quicker way...

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0
3 years ago
#4
(Original post by TSRforum)
There's a quicker way...

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Inspection, then.
0
3 years ago
#5
I swear 2u/(u-1) never equals 2 + 2/(u+1)

just sub in 2: the first one gets 4 and the second one gets 8/3
0
3 years ago
#6
(Original post by EconEast)
I swear 2u/(u-1) never equals 2 + 2/(u+1)

just sub in 2: the first one gets 4 and the second one gets 8/3
Obvious typo, both denominators should be +-1
0
3 years ago
#7
(Original post by Zacken)
Obvious typo, both denominators should be +1
Maybe it's not a typo but a reading error and that's why OP can't do it haha
0
3 years ago
#8
(Original post by EconEast)
Maybe it's not a typo but a reading error and that's why OP can't do it haha
Fair enough.
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