John bought an iPad for $480 and pain $31.20 in sales tax. What was the sales tax rate?
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Answer:
The polynomial is
Step-by-step explanation:
∵ The polynomial of dgree 4 has 3 , 1 and zero as a double root
∴ x = 3 , x = 1 , x = 0 , x = 0
∴ The factors of this polynomials are:
(x - 3) , (x - 1) , (x) , (x)
∴The polynomial = (x)(x)(x - 3) (x - 1)
∴ The polynomial =