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18 February, 11:21

What number must you add to complete the square?

x^2 + 2x = - 1

A. 4

B. 3

C. 1

D. 2

+2
Answers (1)
  1. 18 February, 11:49
    0
    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
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