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16 May, 10:48

Solve (x + 3) 2 + (x + 3) - 2 = 0.

Let u = ?

A. X

B. x+3

C. (x+3) ^2

+4
Answers (1)
  1. 16 May, 14:26
    0
    If you let u = x+3, then the equation updates to a more simpler form: u^2+u-2 = 0

    The final answer is choice B
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