Question

if sum of the zeroes of 5x^2+(p+q+r)x+pqr is zero,then find p^3+q^3+r^3​

Answer 1

Answer:

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Step-by-step explanation:

Answer 2

Answer:

Let α,β and γ be the roots of the equation x3+px2+qx+r=0

Given that, α+β=0

We have α+β+γ=−p

Thus γ=−p

Substituting γ=−p in the given equation,

⇒−p3+p3−pq+r=0

⇒pq=r

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