Advanced Math practice question

Answer: 3

A product is 0 when a factor is 0. Since x ≠ 0, x − 3 = 0, so x = 3.

Common wrong answers

If you answered 0

0 is ruled out by x ≠ 0.

If you answered 1

1 gives (1)(−2) = −2.

If you answered -3

−3 gives (−3)(−6) = 18, not 0.

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