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Factor by Grouping 3x2+21x−7x−493 x ^ { 2 } + 21 x - 7 x - 49

Question 81

Multiple Choice

Factor by grouping. 3x2+21x−7x−493 x ^ { 2 } + 21 x - 7 x - 49


A) (3x−7) (x+7) ( 3 x - 7 ) ( x + 7 )
B) 3x2+21x−7(x+7) 3 x ^ { 2 } + 21 x - 7 ( x + 7 )
C) 3x(x+7) −7(x+7) 3 x ( x + 7 ) - 7 ( x + 7 )
D) 3x(x+7) −7x+493 x ( x + 7 ) - 7 x + 49
E) (3x−7) (x−49) ( 3 x - 7 ) ( x - 49 )

Correct Answer:

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