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9

Set 2: Quadratic Equations (Beginner)

Explanation

Answer: D

PROBLEM

Solve: 1x squared = 16. Find the positive value of x.

Solve: 1x squared = 16. Find the positive value of x.

A.

5

B.

3

C.

6

D.

4

✓ Correct

Detailed Explanation

Choice D is the best answer. x squared = 16/1 = 16. x = 4

Why others are wrong:
A: 5 is incorrect because it does not satisfy the equation.
B: 3 is incorrect because it does not satisfy the equation.
C: 6 is incorrect because it does not satisfy the equation.
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