Advanced Math practice question

Answer: -4

The x² coefficient of (x − a)(x − b)(x − c) is −(a + b + c). Here a + b + c = 2 + (−3) + 5 = 4, so the coefficient is −4. (Full expansion: x³ − 4x² − 11x + 30.)

Common wrong answers

If you answered 4

4 has the wrong sign.

If you answered 30

30 is the constant term.

If you answered -11

−11 is the coefficient of x.

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