ANSWER

EXPLANATION
Recall that,

But we were given that,

and

We substitute these values into the above formula to obtain,

This implies that,

This simplifies to,


So we can now find

We use the same formula again,

We substitute the values to get,

We multiply out to get,
Answer:
x=4
AB=19
Step-by-step explanation:
in such a parallelogram the length of AD must be equal to the length of BC.
=>
18x = 17x + 4
x = 4
AB = 4x + 3 = 4×4 + 3 = 19
you need to add a picture, we can't see what it is
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Answer: 3 zeroes.
Explanation:-
- The fundamental theorem of algebra states that any polynomial with degree m>0 and complex coefficients has atleast one complex root.
- Corollary of fundamental theorem states that for any polynomial with degree m>0 has exactly m solutions.
The given function is 
Because it is a polynomial function with degree 3>0 , Therefore by corollary of fundamental theorem of algebra , it has 3 zeroes.