6t^3x6t^3

A. 12t^3
B. 12t^6
C. 36t^6
D. 36t^6

Is the answer C?
Thank you

2 answers

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown.

I agree with C, but how is that different from D?
Oops sorry I meant to put 36t^9