(5b1c2)-3(4b5a6)-2 equals narbsct

Question

where n, the leading coefficient, is?

where r, the exponent of a, is?

where s, the exponent of b, is?

and finally 7, the exponent of c, is?

Answer 1

5bc² - 3(4b⁵a⁶ ) - 2 = narbsct

 

Not sure what is asking.