Respuesta :

Answer:

7^3

Step-by-step explanation:

This is because your problem you have shown is multiplying 7 three times. There for it is "7^3"= 21

just like how 7x7x7=21 Its just an easier way of writing it.

Hope this helps!

-Payshence

Answer:

7^3

Step-by-step explanation:

7 x 7 x 7 is 7 times the third power. Hence the cubic sign.