Advanced MathMediumProduct of the solutions of a quadratic
Advanced Math practice question
What is the product of the two solutions to x² + 2x − 8 = 0?
Answer: -8
(x + 4)(x − 2) = 0 gives x = −4 and x = 2, whose product is −8.
Common wrong answers
- If you answered 2
- 2 is one solution.
- If you answered 8
- 8 has the sign wrong.
- If you answered -2
- −2 is the sum of the solutions.
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