Question x-2-25
What is a solution to the given equation?
x 2 25 = 36 What is a solution to the given equation?
Medium-difficulty · SAT Math · Nonlinear Equations in One Variable — Radical equations. Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.
Answer explanation
Choice B is correct. Multiplying the left- and right-hand sides of the given equation by yields . Taking the square root of the left- and right-hand sides of this equation yields or . Of these two solutions, only is given as a choice.
Choice A is incorrect. This is a solution to the equation .
Choice C is incorrect and may result from conceptual or calculation errors.
Choice D is incorrect and may result from conceptual or calculation errors.
More Nonlinear Equations in One Variable practice questions
- 64 x 2 - 16 a + 4 b x + a b =
- - 4 x 2 - 7 x = - 36 What is the positive
- 5 x 2 - 37 x - 24 = 0 What is the positive
- 7 x 2 - 20 x - 32 = 0 What is the positive
- What is the solution to the equation above?
- The solutions to x 2 + 6 x + 7 = 0 are r
- Which of the following values of x satisfies the given equation?
- A rectangle has an area of 155 square inches. The length of the rectangle
Browse all Passport to Advanced Math practice questions or return to the full SAT question bank.