Factor out the greatest common factor.48x7 + 6x4 - 42x2
A. x2(48x5 + 6x2 - 42)
B. 6(8x7 + x4 - 7x2)
C. -x2(-48x5 + 6x2 + 42)
D. 6x2(8x5 + x2 - 7)
Answer: D
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Find an equivalent fraction with the given denominator.
= 
A. 
B. 
C. 
D. 