90cd squared

Question

Please factor 90 cd squared, while showing how u got the answer, I am not sure if 9 and 3 or 9 and 10

Answer 1

I'm not sure what "cd" is, but factoring 90 gives 90² = (90 x 90) = (3 x 3 x 2 x 5)² .

 

You could also write 90² = 3² x  3² x 2² x  5² .