Bunuel wrote:
Which of the following is equivalent to for all values of x for which both \(\frac{2x^2(x + 3) -2x -6}{x^2 + 2x - 3}\) expressions are defined?
(A) 2x^2 - 2
(B) 2x + 2
(C) x + 1
(D) 2x + 6
(E) x - 1
\(\frac{2x^2(x + 3) -2x -6}{x^2 + 2x - 3}\)
\(\frac{(2x^2-2)(x + 3)}{(x+3)*(x-1)}\)
\(\frac{(2x^2-2)}{(x-1)}\)
\(\frac{2(x^2-1)}{(x-1)}\)
\(\frac{2(x-1)(x+1)}{(x-1)}\)
\(2(x+1)\)
Answer: Option B
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60% (02:34) correct 
