[tex](5 \times 2.4 = 12)[/tex]
[tex](10^4 \times 10^7 = 10^{4+7} = 10^{11})[/tex]
[tex](1.2 \times 10^{11})[/tex]
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Answers & Comments
multiply the coefficients
[tex](5 \times 2.4 = 12)[/tex]
add the exponents
[tex](10^4 \times 10^7 = 10^{4+7} = 10^{11})[/tex]
The scientific notation of the simplified expression is
[tex](1.2 \times 10^{11})[/tex]