Seudónimo
Seudónimo
20-10-2014
Mathematics
contestada
what is k^2+5k-6=0 ?
Respuesta :
luana
luana
20-10-2014
[tex]Factorise\ equation:\\\\ k^2+5k-6=0\ \ \ \ | write\ 5k\ as\ -k+6k\\\\ \alpha k(k+6)-1(k+6)=0\\\\k^2-k+6k-6=0\\\\(k-1)(k+6)=0\\\\k=1\ \ \ or\ \ \ k=-6 [/tex]
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