Keyasan1n8ahrabanob
Keyasan1n8ahrabanob Keyasan1n8ahrabanob
  • 04-08-2016
  • Mathematics
contestada

factor completely 2x^2 − 2x − 40. 2(x − 5)(x 4) (2x − 10)(x 4) (x − 5)(2x 8) 2(x − 4)(x 5)

Respuesta :

dalendrk
dalendrk dalendrk
  • 04-08-2016
2x^2 - 2x - 40 = 2x^2 -10x + 8x - 40 = 2x(x - 5) + 8(x - 5)

= (x-5)(2x+8) = 2(x-5)(x+4)
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