Apolynomial function has roots –5 and 1. which of the following could represent this function? f(x) = (x + 5)(x + 1) f(x) = (x – 5)(x – 1) f(x) = (x – 5)(x + 1) f(x) = (x + 5)(x – 1)

f(x) = (x + 5)(x - 1)

using the ' factor theorem '

given x = a is the root of a polynomial then (x - a ) is a factor

here roots are x = - 5 and x = 1 hence factors are (x + 5) and (x - 1)

the polynomial is the product of the factors

f(x) = (x + 5)(x - 1)

- or -2.5555... or -2

Step-by-step explanation:

Original equation:

w+ (-x) -2/3

Now, you have to subsitute the variables:

w= -5/9

x=4/3

So, the equation would look like:

-5/9 + (-4/3)-2/3= -23/9