Question

Perform the operation. Write your answer in scientific notation.

(2×10^4)(5.4×10^6) =​

Answer 1

(2 • 10^4)(5.4 • 10^6)
= 1.08 • 10^11 in scientific notation

Answer 2

Answer:

$(2 \times {10}^{4} )(5.4 \times{10}^{6} ) \\ = 2 \times 5.4 \times {10}^{(4 + 6)} \\ = \boxed{ 10.8 \times {10}^{10} }$

10.8×10¹⁰ is the right answer.