Question

4 (x + y)² - 3(x +y)​

Answer 1

Answer:

Using the identity,,,,

$= > \: (x + y) {}^{2} = x {}^{2} + 2xy + y {}^{2}$

We can put this identity in the equation...

$4( {x}^{2} + 2xy + y {}^{2} ) - 3(x + y) \\ 4x {}^{2} + 8xy + 4y {}^{2} - 3x - 3y$

HOPE IT HELPS ❤️