Advanced Math practice question

Answer: 2

x(x² − 4x + 4) = x(x − 2)² = 0, so x = 0 or x = 2: two distinct solutions.

Common wrong answers

If you answered 0

The equation clearly has x = 0 as a solution.

If you answered 1

1 misses x = 0.

If you answered 3

3 counts the repeated root x = 2 twice.

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