# グローバルビジネスで役立つ数学（22）べき乗の計算（英語版）

Hi, there!

Today, let me focus on the years 1978 and 2022. Why? … Take it easy.
You will find the reason later on.

In 1978, I worked in a trading company’s Latin America Section. I had
a decent command of English; however, the Spanish spoken in its coun-
tries was all Greek to me, and I struggled with writing correspondence
and receiving phone calls from overseas in Spanish.

¿Con quién hablo, por favor?（Who am I speaking to, please?）
I was desperate to learn as many boilerplate expressions as possible
to respond and not disgrace myself in the company.

It is a fond recollection of bygone days.

44 years later, since I entered the workforce, surprisingly, I’ve mellowed
out and matured to some extent but become a bit bigoted and frustrat-
ed about herbivorous-type people. In 2022 this year, it is a time when I
require a significant change in mindset.

Here comes the word problem that makes me help reverse my way of
thinking, and let me give it a shot.

Evaluate “$$(1978)^{2} + (2022)^{2}$$”.

Here is my solution.

First of all, let me put $$2000 = x$$ and $$22 = y$$.

$$(x – y)^{2} + (x + y)^{2}$$
$$= x^{2} – 2xy + y^{2} + x^{2} + 2xy + y^{2}$$
$$= 2x^{2} + 2y^{2}$$
$$= 2(x^{2} + y^{2})$$
$$= 2(4000000 + 484)$$
$$= 2(4000484)$$
$$= 8000968$$

Somewhere between 1978 and 2022, I’ve made a slew of mistakes in
both my private life and the workplace. However, I believe I could en-
rich my experiences.

Not failure, but low aim, is a crime.
I will aim high, keeping young at heart.

Stay tuned, and expect to see my next post.

Keep well.

Frank Yoshida

￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣
【グローバルビジネスで役立つ数学】でもっと学習する b＾＾)
【参考図書】『もう一度高校数学』（著者：高橋一雄氏）株式会社日本実業出版社
【レッスン】私のオンライン英語レッスンをご希望の方はこちらをご覧ください。
【コンテント】当サイトで提供する情報はその正確性と最新性の確保に努めていま
すが完全さを保証するものではありません。当サイトの内容に関するいかなる間
違いについても一切の責任を負うものではありません

￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣