Question

find the area
of square whose
side is 3x -y
​

Answer 1

9x - 3y - 3xy + y²........

Answer 2

Answer:

Here formula for area of square is a2

Now side=3x-y

so (3x-y)2

now by (a-b)2 = a2+b2-2ab

so (3x)2+y2 - 2 × 3x × y

so 9x2 + y2 - 6xy

I hope it help you