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What value is needed to complete the square?
X²-2x + _______

User Rhuff
by
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1 Answer

4 votes

Answer:


X^2-2x+1

Explanation:

Traditional pattern for a perfect square:


x^(2) +2ax+a^(2)

Which factors into:
(x+a)^2

We know becuase a is "missing" from the original equation that it must equal 1; therefore:


x^2+2x+1

Which we know is correct because it factors into:
(x+1)^2

User Steven Mills
by
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