What values of x satisfy the equation x^2 - 4 = 0?
Category: Math · Difficulty: hard
Hint: Factor the equation to find the roots.
Answer
A pair of two
Explanation
Factoring gives solutions x = 2 and x = -2, hence 'a pair of two'.
This is a hard math riddle — a tricky one that takes a little thought. The answer is A pair of two.
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