Mathematics
Senior High
なぜ波線の-4pqのpqは次の式で無くなっているのですか?
がqーy°-4が°q-4pg°
= y(-g)-4pq (p+q)
= g(p+q)(p-g)-4pg(b+q)
= y(p+g)(b-q-4) 2?
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