Question

expand (3/x-1/2y)(3x+1/2y)(9x^2+1/4y^2)​

Answer 1

Answer:

This is by the identity (a+ b)^2

so, (3x + 1/2y)^2 + 2(3x + 1/ 2y)(2z) + (2z)^2

(9x^2 + 1/4y^2) + (6zx + 2z/y) + 4z^2

hope this helps!!!