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  • 25-11-2018
  • Mathematics
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Please help!!!!!!
Factorize x² – 8x + 15
Also provide explanation and correct working!!
Will give Brainliest!!

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 25-11-2018

x² – 8x + 15

(x-3) (x-5)


what two numbers multiply to 15 and add to -8

I list all the factor of 15 that are negative and see if they add to -8

-1 * -15  = 15      -1 + -15 = -16   no

-3 * -5  = 15      -3 + -5 = -8  works

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