please help i really need it and please don't answer just to guess please i really need the help this is the only one

Answer:
18x
Step-by-step explanation:
-It is the same as 3x^-2 • 6x^3.
-Multiply the constants (in this case 3 and 6 =18)
-Add the exponents (-2+3=1)
-Your answer is 18x