amadoukamara85
amadoukamara85 amadoukamara85
  • 23-08-2016
  • Mathematics
contestada

solve each equation by taking square roots

9r^2 +3=-204

Respuesta :

dalendrk
dalendrk dalendrk
  • 26-08-2016
9r² + 3 = -204    |subtract 3 from both sides

9r² = -207    |divide both sides by 9

r² = -23 < 0 NO REAL SOLUTIONS

COMPLEX SOLUTION:

r² = -23 ⇔ r = √(-23) = i√23
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