jasminelockhart596 jasminelockhart596

20-07-2017
Mathematics

contestada

Find the sum of the solutions of this equation 20x^2-39x-80=0

Respuesta :

sergibcnusa sergibcnusa

20-07-2017

This is 'nice':

The sum of the solutions is the coefficient with 'x', change it sign and divide by the coefficient of x^2:

sum = 39/40.

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