Advanced MathEasyPositive value where a cube equals four squares
Advanced Math practice question
For what positive value of x is x³ equal to 4x²?
Answer: 4
Dividing both sides by x² (which is positive) gives x = 4.
Common wrong answers
- If you answered 0
- 0 satisfies the equation but is not positive.
- If you answered 2
- 2 gives 8 and 16.
- If you answered 16
- 16 is 4², one step too far.
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