20, 23, and 26
20...one possibility.......
y = −(x − 4)2 + 1
23 ..... f(x) * g(x) = degree 2 * degree 3 = degree 6
26 f(x + 3) shifts the graph [ and roots] to the left by 3 units....so the "shifted" roots are −3, −2, −1
