Respuesta :

wolf1728
Use the quadratic formula
a = 2  b = 16  c = -9

x = [-b +-sq root (b^2 - 4*a*c)] / 2*a
x = [-16 +- sq root (256 -4*-18)] / 4
x = [-16 +- sq root (256 +72)] / 4
x = (-16 +- 18.11) / 4
x1 = .5275
x2 = -8.5275


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