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annie316
annie316 annie316
  • 08-03-2017
  • Mathematics
Answered

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

Verified Answer :

Anonymous Anonymous
  • 08-03-2017

this will not factor so you can use the quadratic formula
x = [- (-3) +/- sqrt(9 - 45-4) / 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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