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javicka1
javicka1 javicka1
  • 04-02-2016
  • Mathematics
Answered

What is the x-intercept of the graph of y =x2-4x+4

Verified Answer :

Panoyin
Panoyin Panoyin
  • 04-02-2016

y = x² - 4x + 4
      0 = x² - 4x + 4
      0 = x² - 2x - 2x + 4
      0 = x(x) - x(2) - 2(x) - 2(-2)
      0 = x(x - 2) - 2(x - 2)
      0 = (x - 2)(x - 2)
      0 = (x - 2)²
      0 = x - 2
   + 2      + 2
      2 = x
(x, y) = (2, 0)

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