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What number do you add to the polynomial x2 plus x to complete the square?
Wiki User
∙ 13y ago
X^2 + X = 0
halve the linear term (1) and square it then add to both sides
X^2 + X + 1/4 = 1/4
factor left; gather terms right
(X + 1/2)^2 = 1/4
(X + 1/2)^2 - 1/4 = 0
(-1/2,-1/4) vector
and the number 1/4 was added to both sides completing the square
Wiki User
∙ 13y ago
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