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If a + b = 5 and a b = 2, then 4ab =
[#permalink]
07 Apr 2023, 07:50
07 Apr 2023, 07:50
Expert Reply
00:00
Question Stats:
91% (01:10) correct
8% (01:33) wrong based on 12 sessions
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Re: If a + b = 5 and a b = 2, then 4ab =
[#permalink]
07 Apr 2023, 16:07
07 Apr 2023, 16:07
1
(a + b)^2 - (a - b)^2 = 4ab
4ab = 25 - 4 = 21
4ab = 25 - 4 = 21
gmatclubot
Re: If a + b = 5 and a b = 2, then 4ab = [#permalink]
07 Apr 2023, 16:07
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