Given that $|k|*|k| = 9$ , what is the product of all possible values of $k$ ?

Correct answer marked below

-9

Correct

-3

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Explanation

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Official Explanation

Official

Starting with the equation

|k|*|k| = 9

, we can rewrite it as

|k|^2 = 9

. Taking the square root gives us

|k| = 3

. This…

Comments

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YaminaApr 16, 2024

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What this question tests

Your ability to solve absolute-value equations and inequalities by considering both cases.

Dropping the absolute value bars entirely or missing that |x| = k has two solutions when k > 0.