Or maybe something along these lines?
Manipulate[
x = a*b;
z = x^c;
Grid[{
{"Product of a and b", x},
{"The product raised to c", z}
},
Alignment -> {{Left, Right}, Automatic}, Spacings -> 2
],
{{a, 2}, 0, 10, 1, Appearance -> "Labeled"},
{{b, 3}, 0, 10, 1, Appearance -> "Labeled"},
{{c, 4}, 0, 10, 1, Appearance -> "Labeled"},
{x, None},
{z, None}
]