Which polynomial function has a leading coefficient of 1 and roots (7 + 1) and (5 - 1) with multiplicity 1? o f(x) = (x + 7)(x - 1)(x + 5)(x + 1) o f(x) = (x - 7)(x - 1)(x - 5)(x + 1) of(x) = (x -(7 - )(x - (5 + 1)(x - (7 + 1)(x - (5 - 1)) o f(x) = (x + (7 - 1)(x + (5 + 1)(x + (7 + 1)(x + (5 - 1) mark this and return save and exit nex