Question

Write a polynomial function of minimum degree with real coefficients whose zeros include those listed. Write the polynomial in standard form.

5, -3, and -1 + 3i

Answer 1

Same as the last one, except don't forget complex zeroes come in pairs.

Answer 2

f(x) = x4 - 4x3 - 15x2 - 25x - 150?

Answer 3

Assuming you plugged in the zeroes and expanded correctly...

Answer 4

That doesn't look right.

Answer 5

i got this f(x) = x4 - 4x3 + 15x2 + 25x + 150
doing the whole x+a)

Answer 6

Write what you got before expanding it.