4
Answer: ASet 4: Quadratic Equations (Beginner)
Explanation
PROBLEM
Solve: 2x squared = 18. Find the positive value of x.
Solve: 2x squared = 18. Find the positive value of x.
A.✓ Correct
3
B.
6
C.
2
D.
5
Detailed Explanation
Choice A is the best answer. x squared = 18/2 = 9. x = 3
Why others are wrong:
B: 6 is incorrect because it does not satisfy the equation.
C: 2 is incorrect because it does not satisfy the equation.
D: 5 is incorrect because it does not satisfy the equation.