book Maths Puzzle Numerical Ability

find the equation for the parabola with focus (1,4) and directrix x=-3

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book Other Question

The points A(3,4), B(-6,-2) and C(5,1)are the vertices of a triangle on a graphic designers template.

Find the equation of the medin of triangle ABC from A(3,4)
I need your help with, Factoring Trinomials By Grouping, If the Trinomials cannot be factored write "PRIME"

18p^4+63p^3+27p^2