F(x) = x3 + 4x2 + x − 6 i would like to know the answer of this because i try all the methods and said that is an incorrect and i can't continue on my work without having the correct answer.

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula , what is the temperature in celsius corresponding to r degrees rankine? a. 9/5(c - 273) b. 9/5(c + 273) c. 5/9( c - 273) d. 5/9( c + 273)