Factorization 5x ^ 2-4xy + y ^ 2

5x^2-4xy+y^2=0
Quadratic equation with one variable as X
Discriminant

1 / x + 1 - x + 3 / X's Square - 1 × X's Square - 2x + 1 / X's square + 4x + 3, where x = 2

Original formula = 1 / (x + 1) - (x + 3) / (x + 1) (x-1) × (x-1) & # (x + 1) (x + 3)
=(x+1)/(x+1)²-(x-1)/(x+1)²
=(x+1-x+1)/(x+1)²
=2/(x+1)²
=2/(-2+1)²
=2

How to square 2x minus 4x?

2x^2-4x^2=-2x^2

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