Question

X²-3x+3y-y² factorise

Answer 1

Answer:

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

Step-by-step explanation:

rearranging the expression as,

(x^2 - y^2) + 3y -3x

using the identity a^2 - b^2= (a+b) (a-b)

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

taking out 3 as common

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

Answer 2

Answer:

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

Step-by-step explanation:

x⁴-3x+3y-y² = (x²)²-(y)²-3(x-y)

= (x+y) (x-y) - 3(x-y)

= (x-y) [(x+y)-3]

= (x-y) (x+y-3)