Annaba8rkerrettyg
Annaba8rkerrettyg
10-08-2016
Mathematics
contestada
solve x2 6x -6 = 10 for x
Respuesta :
apologiabiology
apologiabiology
15-08-2016
x^2+6x-6=10
minus 10 from both sides
x^2+6x-16=0
factor
what 2 numbers mulitply to get -16 and add to get 6?
8 and -2
(x+8)(x-2)=0
set each to zero
x+8=0
x=-8
x-2=0
x=2
x=2 and/or -8
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