Math Arguments

Problems, Questions, and Puzzles to spark discussion and argument in the maths classroom.

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Item 261

Roots of an equation.

There's nothing RealWorld about this question.

The two roots of the quadratic equation \(x^2 - 85x + c = 0\) are prime numbers. What is the value of c?

What part of that sentence is the most important - that couldn't be left out and still have a solution?


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T.R.Milne
ALG2

Source: T.R.Milne
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