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Find the product of all positive integer values of c such that 8x^2 + 45x + c = 0 has two real roots.

 Mar 26, 2022
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You can find all of them by making the discriminant positive: 

               b2 - 4·a·c  >=  0      with a = 8 and b = 45

and solving for c.

 

Or, you can realize that one of the possible correct answers is 0; making the 

product of all of them also 0.

 Mar 26, 2022

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