Answer:
x(aka the number) = -16
This is because 4 times -16 = -64, and -64 plus 57 = -7.
Step-by-step explanation:
What you do is plug the numbers for each variable ur equation will look like 2(6)(-3)+4
lets solve it step by step 2(6)(-3)+4
12(-3)+4 then -36+4 and ur answer will be -32
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WIth the parameterization

we end up with

We also have

So in the line integral, we get


Multiplying 3 and 4 should give you the answer