Answer:
1, -0.5, -6.25
Explanation:
The number in the left box is the leading coefficient. The coefficient of x^2 is 1, so that goes in the first box.
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The number in the second box is half the coefficient of x, divided by the leading coefficient:
(1/2)(-1)/1 = -1/2
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The number in the third box (k) is the number required to make the rewritten g(x) match the original g(x). So far, we have ...
g(x) = 1(x -1/2)^2 + k = x^2 -x -6
x^2 -x +1/4 +k = x^2 -x -6 . . . . . expand the square
1/4 +k = -6 . . . . . . . . . . . . . . . . . subtract the x-terms from both sides
k = -6 1/4 . . . . . . . . . . . . . . . . . . subtract 1/4
So, you have ...
