what is 15x4X20x12/12x7

da 4 is supposed 2 be squared but a 4, n where it says 20x12 da 12 is supposed 2 b squared but a 12 n lastly where it says 12x7, da 7 is supposed 2 be squared but a 7

da big X is supposed 2 b times n da little x is supposed 2 b in algebra wen u get da 2 c's bak 2 bak

plz help, i dno wot da ansa is!!! n i need 2 do it quikly.

post bak if u noe da ansa plz