(45-5)/10 = 5
f(x) equal to square root of 3x minus 1 at x equal to 5 over 3
(1/2s)*(s/4)
1584242
30037650
23824086
4183442
5636880
7299244
(2r/s)*(2r/3rs)
(5p^3q/pq)*5pq^2
(5p^3q/pq).5pq^2
5p^3q/pq.5pq^2
x+y+2xy=69x**2
x+y=36
solve via lagrange's multiplier
-5b^4c^2/bcd^3*(-2c^2d^4)