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因式分解x²-y²-z²+2yz

因式分解x²-y²-z²+2yz
zlr1513 1年前 悬赏10滴雨露 已收到2个回答 我来回答 举报

莜馨 幼苗

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原式=x²-(y²+z²-2yz)
=x²-(y-z)²
=(x+y-z)(x-y+z)

1年前

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一水之隔 幼苗

共回答了1183个问题 向TA提问 举报

因式分解
x²-y²-z²+2yz
=x²-(y²-2yz+z²)
=x²-(y-z)²
=(x+y-z)(x-y+z)
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1年前

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