Write a polynomial function of least degree with integral coefficients that has the given zeros.
15. - 15, -3+57
f(x) = x* +6x® – 3x- 30x-10
O f(x)= 7x* +5x + x? – 30x-10
O f(x) = x4 +6x2 – 3x² + 28x-8
f(x) = 7x* +5x2 + x2 – 20x-8