Step 1. Simplify [tex] 10^{5} [/tex] to [tex]100000[/tex]
[tex]1.8*100000*3.1* 10^{2} [/tex]
Step 2. Simplify [tex] 10^{2} [/tex] to [tex]100[/tex]
[tex]1.8x*100000*3.1*x*100[/tex]
Step 3. Gather like terms
[tex]1.8*100000*3.1*100x*x[/tex]
Step 4. Simplify so you get your answer.
[tex]55800000 x^{2} [/tex]
Is your answer
Done! :)