Question x-2-2-
What is the smallest solution to the given equation?
x - 2 2 = 3 x + 34 What is the smallest solution to the
Hard-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 . Squaring both sides of the given equation yields , which can be rewritten as . Subtracting and from both sides of this equation yields . This quadratic equation can be rewritten as . According to the zero product property, equals zero when either or . Solving each of these equations for yields or . Therefore, the given equation has two solutions, and . Of these two solutions, is the smallest solution to the given equation.
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