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14 January, 19:13

What number would you add to both sides of x2 + 7x = 4 to complete the square?

A. 2^2

B. 7^2

C. 7^2/2

D. (7/2) ^2

Answers (1)
  1. K
    14 January, 21:19
    0
    D. (7/2) ^2

    Then, you would be able to factor it to (x+3.5) ^2
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