Question

determine which binomial is not a factor of 4x^4-21x^3-46x^2+219x+180
a. x+4
b.x+3
c.x-5
d.4x+3
explain

Answer 1

@dpaInc

Answer 2

@zepdrix

Answer 3

So I imagine that we'll need to check each binomial.

Are you familiar with either, Polynomial Long Division or the other method, Synthetic Division?

Answer 4

yes

Answer 5

Which method would you prefer to use? :)

Answer 6

long division

Answer 7

So let's look at our first option a sec. We need to get our BINOMIAL to match the leading term.

So I think we need a 4x^3 in order to match them up right?