Is there a mathematics symbol for referring to the equation below?
(((((((((((100*y-x) *y-x) *y-x) *y-x) *y-x) *y-x) *y-x) *y-x) *y-x) *y-x) *y-x) *y-x = 0, x = 9.8
I've tried using capital sigma and capital PI but both of them can't seem to be able to express the above equation.
Depending on your context and needs you can either view it as iteration of a function: $$ f^{12}(100) \qquad\text{where }f(z)=zy-x $$
or you can apply the distributive law and get $$ 100y^{12} - xy^{11} - xy^{10} - \cdots - xy^2 - xy - x $$
which after a bit more rearrangement becomes $$ 100y^{12} - x\frac{y^{12}-1}{y-1} $$