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GRE Prep Club Team Member
Joined: 20 Feb 2017
Posts: 2506
Given Kudos: 1055
GPA: 3.39
If a and b are integers and b 0 which of the following CANNOT equal
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24 Jan 2023, 01:38
24 Jan 2023, 01:38
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Expert Reply
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Question Stats:
75% (01:35) correct
25% (00:50) wrong based on 4 sessions
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If a and b are integers and b ≠ 0 which of the following CANNOT equal 0?
(A) ab
(B) a - b
(C) a + b
(D) ab - b^2
(E) a^2 + b^2
(A) ab
(B) a - b
(C) a + b
(D) ab - b^2
(E) a^2 + b^2
Re: If a and b are integers and b 0 which of the following CANNOT equal
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25 Jan 2023, 09:53
25 Jan 2023, 09:53
Expert Reply
(A) ab
If a=0 , then ab=0
(B) a - b
If a=b , then a-b= =0
(C) a + b
If a=-b , then a+b=0
(D) ab - b^2
If a=b , then ab-b^2= 0
(E) a^2 + b^2
Can't be equal to zero .
If a=0 , then a^2 + b^2 =b^2
if a=-ve , then a^2 + b^2 not equal to 0
Answer E
If a=0 , then ab=0
(B) a - b
If a=b , then a-b= =0
(C) a + b
If a=-b , then a+b=0
(D) ab - b^2
If a=b , then ab-b^2= 0
(E) a^2 + b^2
Can't be equal to zero .
If a=0 , then a^2 + b^2 =b^2
if a=-ve , then a^2 + b^2 not equal to 0
Answer E
gmatclubot
Re: If a and b are integers and b 0 which of the following CANNOT equal [#permalink]
25 Jan 2023, 09:53
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