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  • 27-05-2016
  • Mathematics
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nobillionaireNobley
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  • 04-06-2016

#19. x(x + 4) + 5x + 3 = -17
        \(x^{2} +4x+5x+3+17=0\)
        \(x^{2} +4x+5x+20=0\)
        \(( x^{2} +4x)+(5x+20)=0\)
        \(x(x+4)+5(x+4)=0\)
        \((x+5)(x+4)=0\)
        \(x+5 = 0\)  or  \(x+4 = 0\)
        \(x=-5\)  or  \(x=-4\)













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