4
Answer: BSet 5: Quadratic Equations (Beginner)
Explanation
PROBLEM
Recent studies show that solve: (x - 3) squared = 1. Find the positive solution.
Solve: (x - 3) squared = 1. Find the positive solution.
A.
3
B.✓ Correct
4
C.
5
D.
6
Detailed Explanation
[Variation 1] Choice B is the best answer. Take square root: x - 3 = ±1. x = 3 + 1 = 4 or x = 3 - 1 = 2
Why others are wrong:
A: 3 is incorrect because it does not satisfy the equation.
C: 5 is incorrect because it does not satisfy the equation.
D: 6 is incorrect because it does not satisfy the equation.