Use MATLAB to solve the following exercise Create symbol x a

Use MATLAB to solve the following exercise.

Create symbol x and find the roots of:

a. x^2 - 4

b. x^2 -2x - 195

c. x^3 + 2x^2 - 13x +10

a) The first equation is a quadratic equation

p = [1 0 -4];

r = roots(p);

b) The second equation is also a quadratic equation

p = [1 -2 -195];

r = roots(p);

b) The second equation is a cubic equation

p = [1 -2 -13 10];

r = roots(p);