Mathematics
Senior High
1段目から2弾目へどう変形したらこうなるかがわかりませんと途中式も一緒に説明していただけるとありがたいです
(√ab)² - (a+b
2 ab(a+b)2-4a262
=
(a+b)2
abla2-2ab+b²)
(a+b)²
ab(a-b)28 081
≥O
(a+b)²
I
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