Question

х2 - 2y + xy – 4 factorise​

Answer 1

Answer:

x^2 - 2y + xy -4

=(x^2-4) + (xy - 2y)

=(x+2) (x-2) +y (x-2)

=(x-2) ((x+2)+y)

=(x-2) (x+y+2)

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Answer 2

x² – 4 – 2y + xy

x² – 4 + y ( x – 2 )

x² – 4 + y ( x – 2 )

x² – 2² + y ( x – 2 )

( x – 2 ) ( x + 2 ) + y ( x – 2 )

( x – 2 ) ( x + 2 + y )