Question

Find the zeros of the function.

f(x) = 9x3 - 45x2 + 36x

0, 1, and 4

-1 and -4

1 and 4

0, -1, and -4

Answer 1

9x(x^2-5x+4)=0

Answer 2

and then solve from there

Answer 3

@estudier has already helped you on this question which you posted earlier: http://openstudy.com/updates/5079af16e4b035d931353a79

Answer 4

but,,, how do i solve it??

Answer 5

The first root will be 9x=0 -> x=0. Then factor out x^2-5x+4 and set it equal to 0.

Answer 6

i seriously don't get this

Answer 7

Well, 0 has to be a solution, as you see by looking at the equation. Can you see why? Then divide both sides by x and then it's reduced to a quadratic equation you can solve.

Answer 8

So the right answer would be o, 1, and 4?????

Answer 9

Yes, I think so.

Answer 10

thank you so much