clear, clc, close all

syms x alpha beta a b c theta z

y2 = beta*exp(alpha);
y = a*x^2 + b*x +c;
solve(y == 0,x);

y3 = (x+3)*(x-12)*(x-13)*(x+2);
expand(y3);

y4 = (exp(i*theta) - exp(-i*theta))/2;
simplify(y4);

y5 = x/24 + x/1234;
simplifyFraction(y5)