Simplify, state any domain restrictions. show work

Enter the number of complex zeros for the polynomial function in the box. f(x) = x+ + 5x² +6

What is the explicit formula for this sequence? -7, -4, -1, 2, a.) an = 8 + (b - 1)3 b.) an = -7 + (n - 1)3 c.) an = 3 + (n -1) (-7) d.) an = -7 + (n - )

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?