Wie vereinfacht man # -2x ^ 3 sqrt ((45x) / (5x ^ 4)) #?

# -2x ^ 3sqrt ((45x) / (5x ^ 4)) #

# = -2x ^ 3 * sqrt (45/5) * sqrt (x) / sqrt (x ^ 4) #

# = -2x ^ 3 * 3 * sqrt (x) / (x ^ 2) #

# = -6xsqrt (x) #