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Tristenftw
Tristenftw Tristenftw
  • 06-03-2017
  • Mathematics
Answered

X^2+6x+9=16, I need to complete the square

Verified Answer :

JSStorey
JSStorey JSStorey
  • 06-03-2017

The first x is x=-7, and the second x=1

Answer Link
kalvilaafele96
kalvilaafele96 kalvilaafele96
  • 06-03-2017

x² + 6x + 9 = 16
x² + 6x + 9 -16 = 16 -16
x² + 6x + 9 -16 = 0
x² + 6x -7 =
0

and then find the factor:
(x + 7) (x  - 1) = 0
x + 7 = 0    ;    x - 1 =
0
x = -7         ;    x = 1
and there is your factors

Answer Link

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