niaziathomas
niaziathomas
01-09-2014
Mathematics
contestada
Factor the expression -10x^2-41x-21
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konrad509
konrad509
02-09-2014
[tex] -10x^2-41x-21=\\ -10x^2-35x-6x-21=\\ -5x(2x+7)-3(2x+7)=\\ -(5x+3)(2x+7)[/tex]
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Lilith
Lilith
02-09-2014
[tex]-10x^2-41x-21= -(10x^2+41x+21) =-(10x^2+35x+6x+21)=\\\\=- [(10x^2+35x)+(6x+21 )]=- [5x(2x +7 )+3(2x+7 )]=-(2x+7)(5x+3)[/tex]
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