Solve.The FDA approves a new drug and has confirmed by independent research that the strength of the reaction to the drug is given by the formula  where d is the dosage amount of the drug and ? is a constant. Find an equivalent expression for S(d) by factoring out a common factor.

A. S(d) = d2
B. S(d) = (? - d)
C. S(d) = 
D. S(d) = d2


Answer: A

Mathematics

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