Question

-4х^2 + 8xy- 4y^2
Разложите на множители

Answer 1

-4(x2-2xy+y2)=-4(x-y)2

Answer 2

$- 4 {x}^{2} + 8xy - 4 {y}^{2} = - 4( {x}^{2} - 2xy + {y}^{2} ) = - 4(x - y) ^{2}$