SAT Math Practice Question #2334 (Medium) | Test Citadel
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SAT Math Difficulty: Medium

Digital SAT Math Practice Question #2334

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Determine the value of $k$ if $(x + 3)$ is a factor of $x^3 + 2x^2 - kx + 6$.
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Masterclass Solution & Distractor Trap Analysis

If $(x + 3)$ is a factor, then $P(-3) = 0$. $(-3)^3 + 2(-3)^2 - k(-3) + 6 = 0 \implies -27 + 18 + 3k + 6 = 0 \implies 3k - 3 = 0 \implies k = 1$....

Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...

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