Mathematics
Junior High
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(4)の問題を簡単に解く方法を教えてほしいです…よろしくお願いします(っ´ω`c)

(4) 179² +124²-179×248-45²

Answers

✨ Best Answer ✨

179=M、124=N、45=Oとすると、
M²+N²-M×2N-O²
=(M²-2MN+N²)-O²
=(M-N)²-O²
=(M-N+O)(M-N-O)
=(179-124+45)×(179-124-45)
=(55+45)×(55-45)
=100×10
=1000

見づらくてすみません🙇‍♂️

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