Question 1093636
 The polynomial of degree 3, P(x) has a root of multiplicity 2 at x=4 and a root of multiplicity 1 at x=−4, The y-intercept is y=−51.2. Find a formula for P(x). 
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P(x) = A(x-4)^2(x+4)
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Solve for "A" using (0,-51.2)
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P(0) = -51.2
-51.2 = A(0-4)^2(0+4)
-51.2 = A*16*4
-51.2 = A*64
A = -51.2/64
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Ans: P(x) = (-51.2/64)(x-4)^2(x+4)
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Cheers,
Stan H.
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