Which of the following is equal to \sqrt{28x^2 - 112x + 112}
A. 2(x+2) \sqrt{7}
B. -2(x-2) \sqrt{7}
C. 7(x-2)
D. 14(x-2)
E. -2 \sqrt{(7x^2 + 28x+28)}
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A. 2(x+2) \sqrt{7}
B. -2(x-2) \sqrt{7}
C. 7(x-2)
D. 14(x-2)
E. -2 \sqrt{(7x^2 + 28x+28)}
[Reveal] Spoiler:
Really confused why the answer is B I solved till it was 7 \sqrt{2}( x-2)