banana4256
banana4256
13-09-2016
Mathematics
contestada
Can you help me with 10,11, and 12 please :)
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nobillionaireNobley
nobillionaireNobley
18-09-2016
[tex]10x^2+20x=0\\10x(x+2)=0\\10x=0 \ or \ x+2=0\\x=0 \ or \ x = -2 \\ \\ \\ 5x^2+50x+120=0\\5(x^2+10x+24)=0\\x^2+10x+24=0\\x^2+4x+6x+24=0\\x(x+4)+6(x+4)=0\\(x+6)(x+4)=0\\x+6=0 \ or \ x+4=0\\x=-6 \ or \ x = -4[/tex]
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