How to factor polynomials: Difference between revisions

Revision as of 01:29, 8 October 2009

Revision as of 01:31, 8 October 2009

Line 96:

<math>a^2-2ab+c^2=(a-c)^2</math><br />

For example:

<math>4h^2-20h+25=(2h)^2-2(2h)(5)+(5)^2=(2h-5)^2</math><br />

<math>100x^2+180xy+81y^2=(10x)^2+2(10x)(9y)+(9y)^2=(10x+9y)^2</math><br />

==References==