banana4256
banana4256
13-09-2016
Mathematics
contestada
Can you please help me with 7,8, and 9 :)
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nobillionaireNobley
nobillionaireNobley
18-09-2016
[tex]x^2+7x=-12\\x^2+7x+12=0\\x^2+3x+4x+12=0\\x(x+3)+4(x+3)=0\\(x+4)(x+3)=0\\x=-4\ and \ x=-3[/tex]
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