Question

plzzzz help
the root x = 1 has multiplicity 2 for the function f(x)=x^3-x^2-x+1
true
false

Answer 1

Find the roots of the function, and see if two of the factors have a zero at 1.

Answer 2

And if it doesnt it is false

Answer 3

one sec

Answer 4

1,-1

Answer 5

@swagmaster47

Answer 6

Did you factor this?

Answer 7

See if you can evenly divide x^3-x^2-x+1 by (x - 1)^2

Answer 8

And if that works then it's true

Answer 9

x+1

Answer 10

@swagmaster47

Answer 11

Is that what you got?

Answer 12

yes

Answer 13

If you got (x + 1) for dividing then it is true.

Answer 14

because you could write this as (x - 1)(x - 1)(x + 1)

Answer 15

thank you so much for your help :)