we know that
Expanded form is a way to write a number by adding the value of its digits
So
[tex] 39,012 [/tex] in expanded form is equal to
[tex] 39,012=3*10,000+9*1,000+0*100+1*10+2*1\\ 39,012=30,000+9,000+10+2 [/tex]
therefore
the answer is
[tex] 39,012=30,000+9,000+10+2 [/tex]
