Please help me solve with V

What is f(3) for the quadratic function f(x)= 2x^2+ + x - 12

Find the values of y: 3y^3(y^2+ 2/3y)=0

1c) the number 131 is a term in the sequence defined by the explicit rule f(n)=5n-4. which term in the sequence is 131? 2a) write the first four terms of the function f(n)=n^2-1 2b) what is the 10th term of the sequence defined by the explicit rule f(n)=n^2-1 2c) the number 224 is a term in the sequence defined by the explicit rule f(n)=n^2-1. which term in the sequence is 224?