Advanced MathEasyEquation with exactly two real solutions
Advanced Math practice question
Which of the following equations has exactly two real solutions?
- A. x² = 16Correct
- B. x² = 0
- C. x² = −16
- D. x = 16
Answer: A. x² = 16
x² = 16 is solved by x = 4 and x = −4.
Why the other answers are wrong
- B. x² = 0
- x² = 0 has only x = 0.
- C. x² = −16
- No real number squares to −16.
- D. x = 16
- x = 16 has one solution.
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