(2)の問題でなぜ-9a²bになるのでしょうか？ -3×a²×(-3b)で+9a²bにはならないのですか？

発展 44 46 次の式を展開せよ。 (1)(2x+1)3 (3) (-3x+2y)3 his (s) (5)(4x+y)(16x²-4xy+y2) (2) (a-3b)³ (4)(x-3)(x2+3x+9) (6)(2a-3b)(4a2+6ab+962) 円 教 p.21 例1 例2

exactとpreciseとaccurateの違いを教えてください🙇🏻‍♀️

違い教えてください

違いで He need not to buy this. He doesn't need to buy this.

連投失礼します🙏 theaterとcinemaの違いを教えてほしいです🙇🏻‍♀️

解説お願いします。 The man decided to wait at the station until his wife came. (男性は妻が来るまで駅で待つことにしました。) という英文なんですけど、his wife cameとなっているのはなぜですか？教えて... Read More

入試過去問 どれが誤りなのか教えてください🙏

They got off at the nearest station to the museum at four on the afternoon. Then they walked for twenty minutes to the museum. エ ウ

入試過去問 どれが誤りなのか教えてください🙏

"Tell me why you were late for school." "I had to look hot to drink after my sister because she had a cold. I bought something to her."

解説お願いします

(for 1 newspapers the last I the * they カ thing wanted was) to find out that they were soon to be married. They had not even told their friends or relatives about it.

解説お願いします

(ア be by close I investigation * owned revealed + the store > to) terrorists, which shocked the customers.

(3)の問題は-15をしなくてよいのですか？41に15は含まれているのですか？

DDD 36 [集合の要素の個数 2] 集合 A, B が全体集合 Uの部分集合で n(U)=100,n(A)=62, n(B)=41, n (A∩B)=15 であるとき,次の集合の要素の個数を求めよ。 (1) AUB (2) A (3) ANB assist 集合を図で表現するとわかりやすい。