Question x-2-22
2.2 Nonlinear Equations in One Variable - Quadratic solving (factoring, quadratic formula, completing square)
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What is the positive solution to the given equation?
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x 2 = 22 22 What is the positive solution to the given equation?
Medium-difficulty · SAT Math · Nonlinear Equations in One Variable — Quadratic solving (factoring, quadratic formula, completing square). Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.
Answer explanation
The correct answer is . The given equation, , is equivalent to . Taking the square root of each side of this equation yields . Thus, the positive solution to the given equation is .
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