다항식의 계산(Calculation of Polynomial)

민은기 (Min Eun Gi), 2021年2月16日

다항식의 계산(Calculation of Polynomial) https://min7014.github.io/math20190819004.html


  • 1. $m(a+b)=ma+mb$
  • 2. $(a+b)(c+d)=ab+ac+bc+bd$
  • 3. $(a+b)^2=a^2+2ab+b^2$
  • 4. $(a-b)^2=a^2-2ab+b^2$
  • 5. $(a+b)(a-b)=a^2-b^2$
  • 6. $(x+a)(x+b)=x^2+(a+b)x+ab$
  • 7. (a+b)^3=a^3+3a^2 b+3ab^2+b^3
  • 8. (a-b)^3 = a^3-3a^2 b+3ab^2-b^3
  • 9. Notice
  • 10. Thank you!

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$m(a+b)=ma+mb$

https://min7014.github.io/math20190819005.html
– 민은기 (Min Eun Gi)

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