Simplify: (2x + 3y – z )²- (2x- 3y + z)²
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(2x+3y-z)^2-(2x-3y+z)^2
={(2x+3y-z)+(2x-3y+z)}{(2x+3y-z)-(2x-3y+z)}
=(2x+3y-z+2x-3y+z)(2x+3y-z-2x+3y-z)
=4x(6y-2z)
=8x(3y-z)
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Answer:
sorry not coming answer
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