Eraluate (3x-7) (3x + 4)
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Answer:
(3x-7) (3x+4)
=> 3x(3x+4) -7(3x+4)
=> 3x*3x + 3x*4 -7*3x -7*4
=> 9x^2 +12x -21x -28
=> 9x^2 -9x -28 (Ans)
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