Question

Factorise x² - y² -2x - 4y +1 -4

Answer 1

Answer:

Step-by-step explanation:

Here

x²-y²-2x-4y+1-4

x²-2x+1-y²-4y-4

x²-x-x+1-{y²+4y+4}

x(x-1)-1(x-1)-{y²+2y+2y+4}

(x-1)(x-1)-{y(y+2)+2(y+2)}

(x-1)²-{(y+2)(y+2)}

(x-1)²-(y+2)²

(x-1-y-2)(x-1+y+2)

(x-y-3)(x+y+1)

Answer 2

Answer:

Ans is (x-y-3) (x+y+1)

Step-by-step explanation:

given above