See also the Dr. Math FAQ: order of operations Browse High
School Basic Algebra Stars indicate particularly interesting
answers or good places to begin browsing. Selected answers to
common questions: Solving simple linear equations.
Positive/negative integer rules. Completing the square. Direct
and indirect variation. Inequalities and negative numbers. -
Math Virus Formula [10/23/2001] The virus spreads to all the
squares directly touching each other (not including diagonally)
and I have found the formula for the number of newly infected
cells (although this does not include the first minute)... -
Matrix Algebra [08/28/1997] I am not sure which formula of
matrices to use in this situation. - Max and Min of Functions
without Derivative [04/22/2003] Is there a general way to find
the maximum and minimum of cubic functions without using
derivatives? - Maximizing Horizontal Distance [04/10/1998] Using
algebra, prove that an object needs to be thrown at 45 degrees
to travel the greatest possible horizontal distanc