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Solve the Problem (3x+7y)(3x−3y+1)( 3 x + 7 y ) ( 3 x - 3 y + 1 )

Question 79

Multiple Choice

Solve the problem.
- (3x+7y) (3x−3y+1) ( 3 x + 7 y ) ( 3 x - 3 y + 1 )


A) 9x2+21xy+3x−21y2+7y9 x ^ { 2 } + 21 x y + 3 x - 21 y ^ { 2 } + 7 y
B) 9x2+12xy+12y29 x ^ { 2 } + 12 x y + 12 y ^ { 2 }
C) 9x2−9xy+3x−21y29 x ^ { 2 } - 9 x y + 3 x - 21 y ^ { 2 }
D) 9x2+12xy+3x−21y2+7y9 x ^ { 2 } + 12 x y + 3 x - 21 y ^ { 2 } + 7 y

Correct Answer:

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