Entry Exam Category: College Admission Exams
Course: Texas Success Initiative Assessment 2.0
Exam: TSIA2 Math Practice Test
Practice Question
If a +√x= b then x =
Answer Choices
- A: √b-√a
- B: √(b-1)
- C: (b-a)²
- D: b²-a²
Correct Answer: C
Rationale: Solve for x: a + √x = b. Subtract a: √x = b - a. Square both sides: x = (b - a)². Thus, the correct answer is (b-a)².