Question

p (x + y) + q (x-y) = p2-pq + q2
And p (x + y) -q (x-y) = p2 + pq + q2, where p is q different from zero​

Answer 1

Answer:

what is your question think first keep calm and then done this question i know very well that you can do it.

Step-by-step explanation:

If you understand my word so give me 5 star for this answer and donot play with your study other wise you can fail in your class.

there fore practice for your compartment examination.you failure...........................................