[中學] Factoring

[Proakis (John G. Proakis)]

Under what circumstances can A^2 + B^2 be factored?

(The process of writing a polynomial as a product is called factoring.)

A^2 + B^2 is a polynomial.

比如說能否因式分解下面這各式子

(x+2)^2 + y^2

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→ ericabab    :複數場?題目也太短= =
→ a88241050   :在甚麼情形下A^2 + B^2可被分解?  看不懂= =
※ 編輯: Proakis         來自: 111.83.60.94         (02/02 00:05)
→ a88241050   :問題是A和B是毫無關係的2個變數,你要怎麼分解
→ Proakis     :如果中間是個減號就能分解成(x+2+y)(x+2-y)
→ Proakis     :目前我不確定A跟B是單純的變數還是說A跟B是算式