annie316 annie316

08-03-2017
Mathematics

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If 5x^2 -3x-4=0, then what are the values of x?

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Аноним Аноним

08-03-2017

this will not factor so you can use the quadratic formula
x = [- (-3) +/- sqrt(9 - 4*5*-4) / 10
= (3 +/- sqrt 89) / 10

= 3 + 9.434 / 10 or 3 - 9.434 / 10

= 1.24 , -0.64 to the nearest hundredth

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