An algebra problem by Razif FA

Algebra Level pending

$\large x^2 - (3p-2) x + (2p+8) = 0$

Given that $$x_1$$ and $$x_2$$ are the roots of the quadratic equation above.

If $$p$$ is positive and $$x_1, p, x_2$$ formed a geometric progression, compute $$x_1 + p + x_2$$.

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