The Texas Mathematics Teachers' Bulletin, Vol. 14
Texas, University of![The Texas Mathematics Teachers' Bulletin, Vol. 14](https://support.digitalhusky.com/media/annotations/sorted/222/22251393/CHSBZCOP0322251393.jpg)
Excerpt from The Texas Mathematics Teachers' Bulletin, Vol. 14: May 22, 1930
This is the basis of the familiar rule - The product of two factors having like signs is positive, having unlike signs is negative.
About the Publisher
Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art tech...