3

Set 1: Quadratic Equations (Beginner)

Explanation

Answer: B

PROBLEM

Solve: (x - 3) squared = 4. Find the positive solution.

Solve: (x - 3) squared = 4. Find the positive solution.

A.

7

B.

5

✓ Correct
C.

6

D.

4

Detailed Explanation

Choice B is the best answer. Take square root: x - 3 = ±2. x = 3 + 2 = 5 or x = 3 - 2 = 1

Why others are wrong:
A: 7 is incorrect because it does not satisfy the equation.
C: 6 is incorrect because it does not satisfy the equation.
D: 4 is incorrect because it does not satisfy the equation.