left parenthesis 4 times 10 Superscript negative 6 right parenthesis left parenthesis 7 times 10 Superscript negative 6 right parenthesis
+54 (4*10-6)(7*10-6)
The answer would be
2 decimal eight times ten superscript negative eleven 
or you can write it as:
2.8*10-11
Note:
The asterisk (*) symbolizes multiplication.
