piranha1d
piranha1d piranha1d
  • 27-11-2017
  • Mathematics
contestada

PLEASE HELP ASAP- solve the equation :
9x^2+64=0 . i need work to be shown for credit ....

Respuesta :

wolf1728
wolf1728 wolf1728
  • 27-11-2017
In this quadratic equation a=9 b=0 c=64, you could use the Quadratic Formula:
x = [-b +-sqrt (b^2 -4*a*c)] / 2*a
x = 0 +- sqrt (0 -4*9*64) / 2*9
x = +- sqrt(-2,304) / 18

x = + 48 i / 18
x = -48 i /18

Where "i" is the square root of minus 1.


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