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calculate the discriminant then state the number and type of solutions
-9x^2+6x+3 = 0
D =


Answer :

Lets check

D=b²-4ac

  • D=6²-4(-9)(3)
  • D=36+108
  • D=144

As it's >0 two real and distinct zeros are present

The right is that 9x^2+6x+3=0

D is equal to 357.66