Question

(ax+by)^2+(ay-by)^2: factorise this

Answer 1

Answer:

1. ax^2+2axby+by^2+ay^2-2ayby+by^2

Step-by-step explanation:

(ax+by)^2+(ay-by)^2

=(ax^2+2*ax*by+by^2)+(ay^2-2*at*by+by^2)

=ax^2+2axby+by^2+ay^2-2ayby+by^2