Answer:
Answer is – 3
Step-by-step explanation:
expand the expression using ( a – b) ( a + b) = a² –b²
( 3 ) ² – ( 6) ² *remember to place your square roots inside the brackets my phone doesn't have one*
then simplify the radical
3–6 = – 3
It’s exact form is 1/3 simplified
kilogram and milligram are proper units of mass in the metric system . Anything with the suffix -gram is a mass measurement Hope this helps!