Relala
Relala Relala
  • 22-11-2016
  • Mathematics
contestada

Factor -9x^2-36x-36 please.

Respuesta :

razhalei razhalei
  • 22-11-2016
Tricky Trinomial
-9x^2-36x-36
(-9x^2-18x)(-18x-36)
-9x(x+2)-18(x+2)
=(-9x-18)(x+2)
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apologiabiology
apologiabiology apologiabiology
  • 22-11-2016
factor out -9
-9(x^2+4x+4)
what 2 numbers multiply to 4 and add to 4
 2 and 2

-9(x+2)(x+2)

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