因式分解:(x+1)(X-1)-3(x+1)(x-1)-34x的平方-3y(4x-3y)

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因式分解:(x+1)(X-1)-3(x+1)(x-1)-34x的平方-3y(4x-3y)
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因式分解:(x+1)(X-1)-3(x+1)(x-1)-34x的平方-3y(4x-3y)
因式分解:(x+1)(X-1)-3
(x+1)(x-1)-3
4x的平方-3y(4x-3y)

因式分解:(x+1)(X-1)-3(x+1)(x-1)-34x的平方-3y(4x-3y)
(x+1)(x-1)-3
=x^2-1-3
=x^2-4
=(x+2)(x-2)
4x^2-3y(4x-3y)
=4x^2-12xy+9y^2
=(2x-3y)^2