Question

Factorise : 2-949- 3 xy(x-4)
73​

Answer 1

Answer:

=x(x-y)⁴ +3xy(x-y)²

=x(x-y)²×[(x-y)]²+3y)

=x(x-y)²×(x²-2xy+y²+3y

=(x-y)²{x²+y²-2xy+y}