The standard scientific expression is given as A * 10^n
Given the scientific values 3 × 10¹² and 4 × 10¹¹, we need to compare the values.
The value of their powers will determine which of the values is greater or less.
For the notation 3 × 10¹², we can see that the power is 12 while for the notation 4 × 10¹¹, the power is 11. Since 12 is greater than 11, hence <u>the value of 3 × 10¹² is greater than 4 × 10¹¹</u>