Question

factorise ab(x²+y²)-xy(a²+b²)

Answer 1

Answer:=(bx-ay)(ax-by)

Step-by-step explanation:

=abx²+aby²-a²xy-b²xy

=abx²-a²xy + aby² - b²xy

=ax(bx-ay) - by( -ay + bx)

=axbx-axay+byay-bybx

=(bx-ay)(ax-by)

Answer 2

step by step explanations: abx2+aby2-a2xy+b2xy
abx2-a2xy-b2xy+aby2
ax(bx-ay)-by(bx-ay)
(bx-ay) (ax-by)