Question

Find a cubic function with the given zeros.
-2, 5, -6

Answer choices:
a) f(x) = x3 + 3x2 + 28x - 60
b) f(x) = x3 - 3x2 - 28x - 60
c) f(x) = x3 + 3x2 - 28x - 60
d) f(x) = x3 + 3x2 - 28x + 60

Plz help!!! THNX

Answer 1

given zeros mean those are the x values when f(x) = 0
(x+2)(x-5)(x+6) = 0
expand and you have your function f(x)

Answer 2

wow, thats actually way simpler than I thought! Thanks.. can you help me with a few others?

Answer 3

@triciaal

Answer 4

it does not matter which 2 you multiply first

Answer 5

do a new post