2u^4x^6*4x^4*2u
This expression can be simplified by multiplying the coefficients and adding the exponents of the variables of like terms.
2 * 4 * 2 = 16 (coefficient)
u^4 * u = u^5 (add the exponents)
x^6 * x^4 = x^10 (add the exponents)
Therefore, the simplified expression is:
16u^5x^10