amadoukamara85 amadoukamara85

23-08-2016
Mathematics

contestada

solve each equation by taking square roots

9r^2 +3=-204

Respuesta :

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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