Question

P^4 - 5P^2+6=0 find the factors on it
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Answer 1

p^4-5p^2+6=0

or, (p^2)2 -5p^2 +6=0

Let p^2=x.

x^2- 5x +6=0

or ,x^2- ( 3+2)x +6 =0

or, x^2 -3x-2x +6 =0

or, x(x-3) -2 (x-3) =0

or, (x-3) (x-2) =0

or, ( p^2-3) ( p^2-2) =0

or, p^2= 3 / 2.

hope it helps you.