delilah0304
delilah0304 delilah0304
  • 24-07-2017
  • Mathematics
contestada

Solve using perfect square factoring patterns. x2 – 8x + 16 = 25

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FLORC
FLORC FLORC
  • 24-07-2017
x^2 – 8x + 16 = 25
-25 both sides
x^2-8x-9=0
(x-9)(x+1)
x=9,-1
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