starrlara
starrlara starrlara
  • 10-01-2018
  • Mathematics
contestada

9x^2-8x-16
how do i factor this polynomial expression

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Panels Panels
  • 10-01-2018
what multiplies to -16 but adds to -8? -4 and 4. So, it would be factored as
(x-4)(x+4), giving you solutions of x=4 and x=-4. 
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