(x-4y)(2x+3y)-(x+2y)(2y-x)
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(x-4y)(2x+3y)-(x+2y)(2y-x)
![(x-4y)(2x+3y)-(x+2y)(2y-x)](/uploads/image/z/18088923-3-3.jpg?t=%28x-4y%29%282x%2B3y%29-%28x%2B2y%29%282y-x%29)
(x-4y)(2x+3y)-(x+2y)(2y-x)
=2x²+3xy-8xy-12y²+x²-4y²
=3x²-16y²-5xy;
很高兴为您解答,skyhunter002为您答疑解惑
如果本题有什么不明白可以追问,
=2x²+3xy-8xy-12y²+x²-4y²
=3x²-16y²-5xy;
很高兴为您解答,skyhunter002为您答疑解惑
如果本题有什么不明白可以追问,
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