curve intersection on mathcad prime 3.1

Cryslin Lin wrote: I'm using matchcad prime 3.1 for the very first time to solve curve intersections as below (which I have a ton of). I know I have to use solve block, but I can get it to work. what am I doing wrongly? y1:=86 y2:= -0.0000054527x^3 + 0.010903836x^2 + 0.0714244709x + 74.18816 x:=1         y:=1 y1(x) = y2(x) y=y1(x) find(x,y)

You need to define y1 and y2 as functions, eg:

You don't need to define y2 using variables as I have done, you could just amend your y2 to y2(x); I just prefer writing the constants separately as it makes it easier to play with them.

Stuart