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  5. 因数分解 解き方が分からないです😭教えてく...
Mathematics
Senior High
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あや
あや

因数分解
解き方が分からないです😭教えてください。

x²+6x+9-4y2

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✨ Best Answer ✨

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x²+6x+9-4y²
=(x+3)²-(2y)²
={(x+3)+2y}{(x+3)-2y}
=(x+2y+3)(x-2y+3)

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