Hey I have no idea how to do this question...can you point me in the right way please

Consider the following functions:

f(x) = x + 1, g(x) = x − 1, h(x) = 2x, m(x) = 4x, n(x) = x^2, p(x) = √x, and q(x) = 2x + 1.

Use composition of functions and one or more of f , g, h, m, n, p and q to define two new functions: y(x) = x^2 − 2x + 1 and z(x) = 4x^2

Thanks for any help