Advanced Math practice question

Answer: 2

x(x² − 4) = x(x − 2)(x + 2) = 0, so x = 0, 2, or −2. The largest is 2.

Common wrong answers

If you answered 0

0 is a solution but not the largest.

If you answered 4

4 comes from x² = 4 without taking the root.

If you answered -2

−2 is the smallest.

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