Answer
$$1.6\times 10^{37}$$
Work Step by Step
By raising each factor to the exponent and multiplying the double exponents, we have $$(2\times 10^{9})^4=1.6\times 10^{37}$$ which is in the scientific notation.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.