What am I doing wrong for part B?

Score on last attempt: |_| 1 out of 2 Score in gradebook: |_| 1 out of 2 If g(:n) = f( 3;) and at) = 35:2 + 123: 7, the formula for 9 can be found as follows. 9(a) = f( 13) g(a:)=3(a:)2+12(:c)7 g(x) = 3:1:2 12:1: 7 a. Using the example shown, determine the formula for n if 72(3) 2 p( 5c) and 19(3) 2 15a: 21. n(X)=-'|5x-2'|