Digital SAT Math Practice Question #2369
Test your problem-solving accuracy on this official-caliber item. Select an answer choice to check your reasoning instantly.
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Square both sides: $(x + 1/x)^2 = x^2 + 2(x)(1/x) + 1/x^2 = x^2 + 2 + 1/x^2 = 25 \implies x^2 + 1/x^2 = 23$....
Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...
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