







Factorise 15x + 15y 
20141120 

Jordan pose la question : hi i saw a question in class today that i didn't understand and i didn't really understand what my teacher was going on about so how do you factorise 15x + 15y Robert Dawson and Penny Nom lui répond. 





Difference of squares 
20121119 

Qelibar pose la question : Please factorise x^2y^2  4 Penny Nom lui répond. 





Factor (6a^25a+1)(8a^26a+1)(12a^27a+1) 
20121116 

bailey pose la question : Factorise f(a)=(6a^25a+1)(8a^26a+1)(12a^27a+1)
thus find [f(a)]^1/2 Penny Nom lui répond. 





Stairs for the new community center, part 2 
20121113 

Emily pose la question : Plans for a set of stairs for the front of a new community center use the ratio of rise to run of 2 units to 5 units.
B. Sketch a set of stairs that meets the risetorun ratio of 2 units to 5 units. Penny Nom lui répond. 





How can I trisect an angle? 
20090727 

Nazrul pose la question : How can I trisect an angle? Robert Dawson lui répond. 





One vertex angle of a regular octagon is trisected 
20090219 

Chelsy pose la question : Suppose one vertex angle of a regular octagon is trisected as shown in the figure. Each side of the octagon measures 4 units. Find the area of the shaded area. Robert Dawson lui répond. 





The rise over the run 
20081007 

Mak pose la question : what is the ratio of the rise to run? Penny Nom lui répond. 





Speed of sunrise 
20070904 

Robert pose la question : Facing west in a car, you are watching the sun rise (through the rear view mirror). It peaks the horizon, you take off driving. How fast would you have to drive, to see it rise again? Stephen La Rocque lui répond. 





Common factors 
20070819 

John pose la question : I have problem factorising 2p^3  34p. Please advise me. Leeanne Boehm, Steve La Rocque and Penny Nom lui répond. 





Trisecting an arbitrary angle 
20040406 

Joe pose la question : Where can I submit my effort on trisecting an arbitrary angle with only a straightedge and a compass? I can do it but I do not have the smarts to prove it.S Chris Fisher lui répond. 





The percentage grade of that hill 
20021105 

Cathy pose la question : If there is an 80ft climb over a kilometer(about 3280ft) what is the percentage grade of that hill? Penny Nom lui répond. 

