Pls not links I am serious

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2

The domain of a function can be represented by which one of the following options? o a. a set of output values o b. a set of f(x) values o c. a set of input values o d. a set of both input and output values

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.