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What number must you add to complete the square? x^2 + 2x = -1 A. 4 B. 3 C. 1 D. 2
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What number must you add to complete the square?

x^2 + 2x = -1
A. 4
B. 3
C. 1
D. 2

User Michael Rowe
by
8.5k points

1 Answer

5 votes
x^2 + 2x = -1......take half of ur x term (2x), and square it. So we take half of 2, which is 1, and square it....1^2 = 1....so u would add 1 to both sides
User Neil Baldwin
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