原式=2²×(2³)^m×(2^4)^m
=2²×2^3m×2^4m
=2^(2+3m+4m)
=2^(7m+2
(x²)³×x²×(2x)²
=x^6×x²×4x²
=4x^(6+2+2)
=4x^10