(^3)+(^7-4(^3)

It seems there are some symbols in your expression that might not be clear. It looks like you might be trying to write a mathematical expression involving powers and subtraction, but the notation is not standard.

If you're trying to express \( x^3 + (7 - 4x^3) \), for example, that would simplify to:

\[ x^3 + 7 - 4x^3 = 7 - 3x^3 \]

If this isn't what you meant or if you meant something different, please clarify the expression you'd like to work with!