Help with a scientific notation problem?

Question

{(6.67 X 10^-11)(5.97 X 10^24}/(6.38 X 10^6)^2.

I keep getting 6.24 X 10^1 but that isnt the right answer..

I start out by multiplying 6.67 X 5.97 to get 39.8199 X 10^13. I then divie that by 6.38 X 10^12 and i get 6.24 X 10^1..help please

Answer 1

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Answer 2

Make sure you are using brackets correctly on your calculator.

Do the calculation in steps if you have to.

Start off by doing:

6.67 x 10^-11 x 5.97 x 10^24 = 3.98199 x 10^14

Now divide by ((6.38 x 10^6)²) to get 9.78.