Which of the following is correct?
A) (4x + 5y)(5x - 4y) = 20x2 + 9xy - 20y2 B) (4x + 5y)(5x - 4y) = 20x2 + 41xy - 20y2 C) (4x + 5y)(5x - 4y) = 20x2 - 9xy + 20y2 D) (4x + 5y)(5x - 4y) = 20x2 - 41xy + 20y2
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the answer is A) option hope it helps you please mark me as brainliest
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Answer:
option A is the correct answer.
A) ( 4x + 5y) (5x - 4y) = 20 x square + 9xy - 20 y square.
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