Question

HELP i don’t know how to answer this

Answer 1

`f(x)= (x-1)(3+√(5))(3-√(5))`

Explanation:

factor further

`f(x)= x^3 -7x^2 +10x -4`

and as you put it:

`f(x)= (x-1)(x^2 -6x +4)`

in the instructions, it says that 1 is a zero.

this is because when x=1

you will see that the first section (x-1) will be (1-1) which is 0

when you multiply 0 by anything, it is 0

so the entire thing would then be zero

(x-1) can not be factored further

but
`x^2 -6x +4` can

factor into
`(3+√(5))(3-√(5))`

use quadratic formula

then put it back into equation

`f(x)= (x-1)(3+√(5))(3-√(5))`

Answer 2

The answer is on the screenshot

Explanation:

The steps are also in 2nd screenshot and is on the website, just type in the thing you need solved. Hope i helped :)