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Factor Using the Ac-Method 21x2−91x−7021 x ^ { 2 } - 91 x - 70

Question 94

Multiple Choice

Factor using the ac-method.
- 21x2−91x−7021 x ^ { 2 } - 91 x - 70


A) (21x+14) (x−5) ( 21 x + 14 ) ( x - 5 )
B) prime
C) 7(3x+2) (x−5) 7 ( 3 x + 2 ) ( x - 5 )
D) 7(3x−2) (x+5) 7 ( 3 x - 2 ) ( x + 5 )

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