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1. x2 - 25 = 12, x + 5 = 4, x - 5 = ?

  • A. 2
  • B. 2
  • C. 2
  • D. 2

Answer: Option B

Explanation:

X^2-25 = 12 

(X+5)(X-5)=12

4(X-5)=12 [X+5=4]

X-5=12/4

X-5=3

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