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15 votes
15 votes
Determine the positive number that must be added or subtracted to the expression to complete the square. x ^ 2 - 2x.

User Anvar
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1 Answer

14 votes
14 votes

Answer:

1

Explanation:

take the -2 and divide it by 2

that gives you -1

then square it

now its positive 1

formula is
(b/2)^(2)

where b is the term next to the x

User Jarchuleta
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