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# The values of x

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The values of x such that 2x^2 - 3x + 5 = 0 are m + ni and m - ni where m  and n are positive. What is mn?

Oct 29, 2020

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$$x = {-b \pm \sqrt{b^2-4ac} \over 2a}$$

a = 2    b = -3  c = 5

Then you can see   m and n

after you have done this for a while you realize that   m*n  = c/a    = 2.5

Oct 29, 2020