Advanced MathEasy–MediumLarger root of a product equal to 50
Advanced Math practice question
The equation (x − 2)(x + 3) = 50 has two solutions. What is the larger one?
Answer: 7
x² + x − 6 = 50 gives x² + x − 56 = (x − 7)(x + 8) = 0, so the larger solution is 7.
Common wrong answers
- If you answered 47
- 47 solves x + 3 = 50.
- If you answered 52
- 52 solves x − 2 = 50.
- If you answered -8
- −8 is the smaller solution.
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