With any or all these problems asap like now can someone  

Ques 8:

The Volume(V) in cubic feet of an aquarium id modeled by the polynomial function V(x)=

a) We have to explain that why x =4 is not a possible rational zero.

By Factor theorem, which states that a polynomial f(x) has a factor (x - k) if and only if f(k)=0.

For this , we will substitute the value of x in the given function.

which is not equal to zero.

Therefore, x=4 is not a possible rational zero.

(b) To show that (x-1) is a factor of V(x).

By Factor theorem, which states that a polynomial f(x) has a factor (x - k) if and only if f(k)=0.

Let (x-1)=0

So, x=1.

Substituting x=1 in the given function.

V(1) = 0

Therefore, (x-1) is a factor of V(x).

Now we will factorize the given function.

Dividing the given function by (x-1).

On dividing, we get quotient as

So, factored form is =

=

=

=

(c) So, the dimensions are 1,2 and -5.

coin flip

non-answer:

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sorry if this isnt what you're looking for i dont really understand the question