Answer:
Simplify the problems first
Step-by-step explanation:
Before you can convert it to scientific notation, you should simplify it first.
#1 for example:
[tex](4 \times 10^5)^2\\[/tex]
Use PEMDAS to solve the equation:
[tex](4 \times 10^5)^2\\= 400000^2\\= 160000000000[/tex]
So, now we have a super big number. To write it in scientific notation, put a decimal place in the number before the zeroes start. It would be [tex]1.6 \times 10^{11}[/tex] since there are 11 places after the decimal.
