Advanced Math practice question

Answer: 4

Factor: (x − 1)(x − 4) = 0, roots 1 and 4; product 4. (Or c/a = 4 directly.)

Common wrong answers

If you answered 1

1 is one root alone.

If you answered 5

5 is the SUM of the roots.

If you answered -4

−4 has the wrong sign; the product is c/a = 4.

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