`24679 xx 92 +24679xx8=?`

Find the value of the following : 54279 xx 92 + 8 xx 54279 .

What would be the result of the following expression (192 xx 192 xx 192-8 xx 8xx 8)/(192 xx 192 + 192 xx 8+8 xx 8)

9.2 xx 8.8 = 72.96

Simplified value of (8.73 xx 8.73 xx 8.73 + 4.27 xx 4.27 xx 4.27)/(8.73 xx 8.73 -8.73 xx 4.27 + 4.27 xx 4.27) is :

If 1xx 8+1=9 ,12 xx 8+2 =98 , 123xx 8+3=987 then 1234 xx 8+4= ............?

What will come in place of question mark (?) . 5xx 3 xx 8 xx 2 - 2 xx 8 = ?

Compare the two numbers 4.56 xx 10^8 and 3.92 xx 10^7