lollol
lollol
27-05-2016
Mathematics
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nobillionaireNobley
nobillionaireNobley
04-06-2016
#19. x(x + 4) + 5x + 3 = -17
[tex] x^{2} +4x+5x+3+17=0 [/tex]
[tex]x^{2} +4x+5x+20=0 [/tex]
[tex]( x^{2} +4x)+(5x+20)=0 [/tex]
[tex]x(x+4)+5(x+4)=0 [/tex]
[tex](x+5)(x+4)=0 [/tex]
[tex]x+5 = 0 [/tex] or [tex]x+4 = 0 [/tex]
[tex]x=-5 [/tex] or [tex]x=-4[/tex]
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