(x-y+z)乘以什麽=z平方-(x-y)平方..

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(x-y+z)乘以什麽=z平方-(x-y)平方..(x-y+z)乘以什麽=z平方-(x-y)平方..(x-y+z)乘以什麽=z平方-(x-y)平方..(x-y+z)(z-x+y)=z平方-(x-y)平

(x-y+z)乘以什麽=z平方-(x-y)平方..
(x-y+z)乘以什麽=z平方-(x-y)平方..

(x-y+z)乘以什麽=z平方-(x-y)平方..
(x-y+z)(z-x+y)=z平方-(x-y)平方

z-(x-y)

Z-X+Y用平方差公式算