POly

Asked by  | 16th May, 2008, 06:14: PM

Expert Answer:

Let the roots are = α, β

sum of roots [α + β] = -b/a = -p/1 = -p

product of roots [αβ] = c/a = 45/1 = 45

[α - β]2 = 144

[α - β] = 12

α = 12 + β

β(12 + β) = 45

β2 + 12β - 45 = 0

β = 15 or -3

so α = 3 or -15

p = -18 or 18

Answered by  | 24th May, 2008, 05:03: PM

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