Answer:
y = x² - 2x - 10
y = (x² - 2x) - 10
y = (x² - 2x + (-2/2)²) - 10 + (-2/2)²
y = ( x² - 2x + 1) - 10 + 1
y = ( x - 1)² - 9
h = 1
k = - 9
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Answer:
y = x² - 2x - 10
y = (x² - 2x) - 10
y = (x² - 2x + (-2/2)²) - 10 + (-2/2)²
y = ( x² - 2x + 1) - 10 + 1
y = ( x - 1)² - 9
h = 1
k = - 9