Mathematics
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この式の因数分解の仕方を教えてください🙇‍♀️

x) (S) (4) a²b²+2ab-3 = 8A-(DA+³D)8-5(s

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✨ Best Answer ✨

a²b²+2ab−3
=(ab)²+2ab−3
abをMとおくと、
(ab)²+2ab−3
=M²+2M−3
=(M+3)(M−1)
Mをabに戻すと、
(M+3)(M−1)
=(ab+3)(ab−1)

答え (ab+3)(ab−1)

わからないところがありましたら、遠慮せず質問してください(^^)

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