s3tar9faquatilli s3tar9faquatilli
  • 01-04-2017
  • Mathematics
contestada

Solve for z.
z^2+15z+14=0

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Аноним Аноним
  • 02-04-2017
z = {- 15 +- root of ( 225-56)  } /  2
 = {-15 +- 13 } / 2
 = -14  or -1

so, z = -14 or -1

hope it helped

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