Question if-wha
If , what is t in terms of u ?
If , what is t in terms of u ?
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
Choice D is correct. Multiplying both sides of the given equation by yields
. Dividing both sides of this equation by
yields
. Adding 2 to both sides of this equation yields
, which can be rewritten as
. Since the fractions on the right-hand side of this equation have a common denominator, adding the fractions yields
. Applying the distributive property to the numerator on the right-hand side of this equation yields
, which is equivalent to
.
Choices A, B, and C are incorrect and may result from various misconceptions or miscalculations.
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