Mathematics
Junior High
Resolved
中学の数学で答え方は赤の①と②どちらで答えた方がいいでしょうか❓教えて欲しいです。
CO
(a+b) (a+sb)
2
3
= = (a+b) = (a +5b)
=== (a² + bab +56²)
2
==// a² + ab + 1/² b ²
6
a²+bab+5b²
6
or
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