marlenejanet marlenejanet
  • 20-10-2017
  • Mathematics
contestada

2 x squared plus 5 x equals negative 2

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aftarahmadsami
aftarahmadsami aftarahmadsami
  • 20-10-2017
2x² + 5x = -2
or, 2x²+5x+2=0
or,2x²+4x+x+2=0
or,2x(x+2)+1(x+2)=0
or,(x+2)(2x+2)=0

Two values can be found:
(x+2)=0                                  (2x+1)=0
or,x= - 2                               or,2x= -1
                                            or, x= -1/2
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