Ответ:0.25х²-0.4ху+0.16у²
Объяснение:
(a-c)²=a²-2ac+c²
(х/2-0.4у)²=х²/4-2х*0.4у/2+0.16у²=0.25х²-0.4ху+0.16у²
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Ответ:0.25х²-0.4ху+0.16у²
Объяснение:
(a-c)²=a²-2ac+c²
(х/2-0.4у)²=х²/4-2х*0.4у/2+0.16у²=0.25х²-0.4ху+0.16у²