Question

g(x) = 4x(x^2 − 4x − 3)
(a) Find all the real zeros of the polynomial function.

Answer 1

can't you factor out (x^2 − 4x − 3)?

Answer 2

Set it =0 and solve

Answer 3

I"m having a difficult time with it for some reason. it's not coming to my head.

Answer 4

Well, the trinomial will not factor so you will have to use the quadratic formula to find the zeros of that factor.

Answer 5

\[4 x \left(x^2-4 x-3\right)=0\]

Answer 6

So you have 4x=0 or x^2-4x-3=0
x=0 and solve the quadratic with the formula.

Answer 7

\[x=0\text{ or }4 x^2-16 x-12=0\]

Answer 8

OH RIGHT. i totally forgot about the quad formula, lol.