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8

Set 1: Quadratic Equations (Beginner)

Explanation

Answer: D

PROBLEM

Solve: 2x squared = 98. Find the positive value of x.

Solve: 2x squared = 98. Find the positive value of x.

A.

9

B.

14

C.

6

D.

7

✓ Correct

Detailed Explanation

Choice D is the best answer. x squared = 98/2 = 49. x = 7

Why others are wrong:
A: 9 is incorrect because it does not satisfy the equation.
B: 14 is incorrect because it does not satisfy the equation.
C: 6 is incorrect because it does not satisfy the equation.
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