For any numbers p and q, what is the result of the operation defined as p◊q = p^2(p - q)q^2 when p is 4 and q is 3?

For any numbers p and q, what is the result o… | GMAT Sprint

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sub-505

Functions

For any numbers p and q, what is the result of the operation defined as $p◊q = \frac{p^2(p - q)}{q^2}$ when p is 4 and q is 3?

Correct answer marked below

16/9

Correct

16/3

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Explanation

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According to the definition,

p◊q = \frac{p^2(p - q)}{q^2}

. To find

4◊3

, we substitute p with 4 and q with 3:…

Comments

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What this question tests

Your ability to evaluate and compose functions, including unusual defined operations.

Applying function operations in the wrong order or ignoring domain restrictions.