What is the first step in solving the quadratiWhich are the roots of the quadratic function f(b) = b2 – 75? Select two options. c equation x2 – 40 = 0?

The first one is correct

Idon’t know what the answer is i wish i could

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?