shericek4281
shericek4281 shericek4281
  • 14-11-2016
  • Mathematics
contestada

3x^2-60x=-315
solve for roots using the quadratic formula.

Respuesta :

sjew sjew
  • 14-11-2016
Move 315
So 3x^2-60x+315=0
Use the formula, hopefully you know it.
-(-60) +- root(-60)^2-4(3)(315)/2(3)
60+-root3600-3780/6
So 60+-6iroot5/6
Simplify again so
10+-iroot5

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