Question

(px+qy)^2+(px-qy)^2
factorise
it

Answer 1

Answer:

2p^2x^2 + 2q^2y^2

Step-by-step explanation:

(px+qy)^2+(px-qy)^2

p^2x^2 + q^2y^2 + 2pqxy + p^2x^2 + q^2y^2 - 2pqxy

2p^2x^2 + 2q^2y^2