| • \((x+a)^{1}=x+a\) | Two terms, beginning with \(x^{1}\) and ending with \(a^{1}\) |
| • \((x+a)^{2}=x^{2}+2ax+a^{2}\) | Three terms, beginning with \(x^{2}\) and ending with \(a^{2}\) |
| • \((x+a)^{3}=x^{3}+3ax^{2}+3a^{2}x+a^{3}\) | Four terms, beginning with \(x^{3}\) and ending with \(a^{3}\) |
| • \((x+a)^{4}=x^{4}+4ax^{3}+6a^{2}x^{2}+4a^{3}x+a^{4}\) | Five terms, beginning with \(x^{4}\) and ending with \(a^{4}\) |