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Find the Sum or Difference (4x−2y+7)(4x−2y−7)( 4 x - 2 y + 7 ) ( 4 x - 2 y - 7 )

Question 551

Multiple Choice

Find the sum or difference.
- (4x−2y+7) (4x−2y−7) ( 4 x - 2 y + 7 ) ( 4 x - 2 y - 7 )


A) −16xy−28x+−14y−49- 16 x y - 28 x + - 14 y - 49
B) 16x2+16xy−4y2−9816 x ^ { 2 } + 16 x y - 4 y ^ { 2 } - 98
C) 8x2−4y2−988 x ^ { 2 } - 4 y ^ { 2 } - 98
D) 16x2−16xy+4y2−4916 x ^ { 2 } - 16 x y + 4 y ^ { 2 } - 49

Correct Answer:

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