Answer:
3
Step-by-step explanation:
Standard form is written in the order of the exponent on a variable from highest to lowest.
#1 exponents go 2, 1 , then zero. So, this is standard form.
#2 exponents go 2 then zero, so this is standard form.
#3 exponents go 1 then 2 then zero, so this is not in standard form.
#4 exponents go 3 to 2 to 1, so this is still in standard form.
hope this helps!
