Question

Factorise :
ab(x^2 - y^2) + (a^2 - b^2)xy = 0​

Answer 1

Explanation:

abx^2-aby^2+xya^2-xyb^2

abx^2+xya^2-aby^2-xyb^2

ax(bx+ya)-yb(ay+xb)

ax(bx+ya)-yb(xb+ay)

(ax-yb) (bx+ya)