Advanced Math practice question

Answer: A. x = 2 and x = −6

Each factor gives a solution: x − 2 = 0 means x = 2, and x + 6 = 0 means x = −6.

Why the other answers are wrong

B. x = −2 and x = 6

The signs flip when solving each factor: x − 2 = 0 gives +2, and x + 6 = 0 gives −6.

C. x = 2 and x = 6

x = 6 gives (4)(12) = 48, not 0.

D. x = −2 and x = −6

x = −2 gives (−4)(4) = −16, not 0.

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