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4^2^3-4^3
[#permalink]
07 Jan 2023, 04:23
07 Jan 2023, 04:23
Expert Reply
00:00
Question Stats:
75% (00:46) correct
25% (01:01) wrong based on 20 sessions
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Quantity A |
Quantity B |
\([ 4^2]^3-4^3\) |
\([4^3]^2-4^2\) |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Re: 4^2^3-4^3
[#permalink]
31 Jan 2023, 12:18
31 Jan 2023, 12:18
Expert Reply
OE
Compare, don't calculate! When a power is raised to another power, the exponents are multiplied. Thus: (4^2)^3 = 4^6 and (4^3)^2 = 4^6. You can subtract 4^6 from both sides so that the comparison boils down to:
A=-4^3
B=-4^2
B > A
Compare, don't calculate! When a power is raised to another power, the exponents are multiplied. Thus: (4^2)^3 = 4^6 and (4^3)^2 = 4^6. You can subtract 4^6 from both sides so that the comparison boils down to:
A=-4^3
B=-4^2
B > A
gmatclubot
Re: 4^2^3-4^3 [#permalink]
31 Jan 2023, 12:18
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