1) Find x if x and 9x are supplementary.
1 answer:
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Answer:
<h2>k=9</h2>Step-by-step explanation:
<h3>to understand this</h3><h3>you need to know about:</h3>- factor theorem
- function
- PEMDAS
- When f(c)=0 then x−c is a factor of f(x)
according to the question